Battery powered outdoor security camera

The Reolink Argus 2 is an excellent security camera with high image resolution, a high field of view, and powerful motion detection. Although, some users experience a choppy video. All in all, this is a well-made product that you should try if you're in the market for a solar-powered security camera.This review of the simplest outdoor battery powered security camera with smartphone app in 2020 can assist you do exactly that. Sure, you'll use an cord and clips to secure everything in situ , but what if you would like to mount your camera to the fence surrounding your property or up during a tree?Jul 13, 2022 · The Blink Outdoor is a battery-powered weatherproof 1080p security camera that offers motion detection, cloud and local storage, Alexa voice control, and support for third-party smart devices ... Mar 03, 2022 · CR’s take: The Eufy Solo Cam S40 is the first security camera CR has tested with a built-in solar panel to recharge its battery. In our tests, it offers superb video quality and data security, and... After introducing its first wire-free, battery-powered indoor camera a few months ago, the company has now taken the wraps off a similar cordless outdoor camera that's rated for up to six months of battery life on a single charge and should help you keep an eye on your house's exterior.Sep 28, 2022 · Easy About Install and Setup, Waterproof: This battery powered wireless and cordless outdoor surveillance camera is easy to install and can be installed almost anywhere using the included tough brackets and screws. Withstand rain and temperatures from - 4 to 122 degrees F, protect your house, whether it's wind or rain. The latest outdoor security cameras will work with just about any smartphone. The cameras themselves have also become extremely affordable. Plus, since they offer a wide field of view, you typically only need one camera to monitor the entire front area of your home, for example.Oct 01, 2022 · HAWKRAY Wireless Outdoor Security Camera with Spotlight, 1080P Battery Powered WiFi Surveillance... No ratings yet: Check Price on Amazon: 3: 2Pack Security Cameras Outdoor Wireless,2K Battery Powered Camera for Home Security, Cloud/SD(up to... No ratings yet: Check Price on Amazon: 4 Reolink Wireless Security Camera Outdoor 1080P HD, Rechargeable Battery-Powered, 2.4GHz WiFi, Night Vision, 2-Way Talk, Works with Alexa, Cloud/Local SD Storage Argus Eco. + 20% off w/ promo code REOLINK20OFF0926,limited offer. $ 69.99. $4.69 Shipping. questdiagnostics.com appointment Battery life has to be near the top of the list of important features for you to think about when you look for the perfect battery powered outdoor security cameras. To avoid costly battery changing you should always choose rechargeable wireless security cameras that have long battery life per charge.Why Battery Powered Security Cameras? In general the majority of customers who opt for battery operated cameras do so because they are easy to install, and are very flexible in terms of where you can place them, because they don't need any access to an electric mains, meaning there are no cables.Conico Outdoor Security Camera, Wireless Rechargeable Battery Powered Camera, 1080P... From $99.99 34. GE. Cync Outdoor 1-Camera 1080P Wireless Battery-operated Standard Micro Sd Security Camera System. Model # 93129828. Find My Store. for pricing and availability. 1. Cree Lighting. Connected Max Outdoor 1-Camera Wireless Battery-operated Stick Up Cam Micro Sd Internet Cloud-based Security Camera System. If you want to completely get rid of any cables, you need a battery operated wireles security camera. That being said, let's take a look at the best battery operated security cameras. The Reolink Go outdoor security camera can be carried literally everywhere with you. This was our selection with the best battery-powered security cameras.Sep 07, 2022 · With the best outdoor security camera you can keep an eye on your property from your smartphone, from anywhere Outdoor Security Camera Wireless, Kami by Yi Rechargeable. Zumimall - Wireless Outdoor WiFi Security Camera, Rechargeable Battery-Powered Home Security Camera, 1080P Night Vision/Waterproof, PIR Motion Detection, 2-Way Audio, Compatible with Cloud Storage/SD Slot.Looking for a portable and battery-powered outdoor security camera for your home? However, most security cameras are wired, making it a tad inconvenient to mount it outdoors or at any location of your choice. And that's where portable or battery-powered security cameras come in handy.Best Battery-Powered: Reolink Argus 2 Outdoor (£108.99). The Argus 2 is a truly wireless machine, with no cables required at all. If you live in an apartment, chances are you won't need to splash out on an outdoor security camera with all the bells and whistles.Wyze had a home run with its indoor wireless security camera and replicated the success with its first outdoor camera, the aptly named Wyze Cam Outdoor. Best of all, the Google Nest Cam (battery) can still work in the event of a power outage or if the internet goes down at home.Sep 24, 2022 · SimpliSafe Wireless Outdoor Security Camera for $180: A stable set of options, crisp 1080p video, and assist for HDR sounds tempting, however you want a Simplisafe safety system ( 9/10, WIRED recommends) and monitoring plan to make this digicam worthwhile, making it too costly for what you get. 1 Benefits of a Wireless Rechargeable Home Security Camera. 2 The 15 Best Battery Powered Wireless Outdoor Security Camera Reviews in 2022. 2.1 1. Arlo Pro 2 Wireless Outdoor Home Security Camera System with Siren. 2.2 2. ZUMIMALL ZM-WFA3P Smart Security camera.Looking for a portable and battery-powered outdoor security camera for your home? However, most security cameras are wired, making it a tad inconvenient to mount it outdoors or at any location of your choice. And that's where portable or battery-powered security cameras come in handy.Jul 20, 2022 · Outdoor battery powered security cameras are just as useful outside the home as they are in the more unusual workspaces that combine outdoor and indoor spaces, like farms and building projects. Security cameras need to be portable and mobile in these working environments, which may be temporary or physically far from power outlets. Multi-User View at The Same Time One camera simultaneously monitors multiple users while supporting 4 users watch the video online. Solar Panel WIFI Camera 1080P HD, Wire-Free Battery IP Camera, Outdoor IP67 Water Proof, 2MP Security CCTV Video with Two Way Audio.Oct 01, 2022 · There are hundreds of Battery Outdoor Security Camera available on the market from various producers, which is enough to confuse you. They are so similar in terms of performance, quality, longevity, and overall user experience that choosing a final buying decision may be tough. Outdoor Security Camera Wireless, Kami by Yi Rechargeable. Zumimall - Wireless Outdoor WiFi Security Camera, Rechargeable Battery-Powered Home Security Camera, 1080P Night Vision/Waterproof, PIR Motion Detection, 2-Way Audio, Compatible with Cloud Storage/SD Slot.One of the coolest features of the Blink Outdoor wireless battery-powered HD security camera is that it's supposed to have 2-year battery life. The camera is powered by two double lithium batteries and these are included. This comes with a free 30-day trial of blink subscription plan. gradynet The best wifi security cameras will be simple to install, have long battery life and record sharp high-quality videos when they sense motion. Whether you're going on holiday, just popping to the shop or waiting on a package, a wifi security camera can help let you know what's going on at home.Installation of an outdoor security camera depends on its power source and type. Mounts for both wireless and wired cameras typically use screws and a baseplate to secure in place, meaning you'll need a drill as a minimum. Some offer magnetic connectors, while other cameras clip into place.Oct 01, 2022 · 【Battery Powered & 100% Wire-Free 】ieGeek outdoor battery security camera comes with 10000mAh upgraded rechargeable batteries that will provide 3-6 months battery life on a single charge. Suggest to use with solar panel (not included). No power cord or network cable required, can be easily mounted indoor or out. Sep 28, 2022 · Easy About Install and Setup, Waterproof: This battery powered wireless and cordless outdoor surveillance camera is easy to install and can be installed almost anywhere using the included tough brackets and screws. Withstand rain and temperatures from - 4 to 122 degrees F, protect your house, whether it's wind or rain. Sep 28, 2022 · The Wireless Outdoor Camera provides stunning night vision up to 20m (65FT) of 4 infrared LEDs. 4 IR lights automatically sense ambient light and switch to night vision mode, the monitor distance is up to 50ft/15m. more. 【IP66 Waterproof & Wide Applicability】- The wireless cameras for home security have waterproof and dustproof housing to ... Keep your home safe with EZVIZ security cameras. Choose from indoor, outdoor, wire-free, wireless cameras with 2k image & more. Security Cameras. Worry-free and hassle-free home protection 24/7. Solar Charging Panel. Designed for EZVIZ Battery-Operated Cameras.Jul 20, 2022 · Outdoor battery powered security cameras are just as useful outside the home as they are in the more unusual workspaces that combine outdoor and indoor spaces, like farms and building projects. Security cameras need to be portable and mobile in these working environments, which may be temporary or physically far from power outlets. Looking for a portable and battery-powered outdoor security camera for your home? However, most security cameras are wired, making it a tad inconvenient to mount it outdoors or at any location of your choice. And that's where portable or battery-powered security cameras come in handy.Wired or battery-powered? Indoor or outdoor? Nest Cams have the versatility to meet your changing needs. A battery-powered camera that goes just about anywhere.3An outdoor camera with a smart floodlight.A wired camera to see who's inside, lights on or off.Included alerts. mcat score Best Battery-Powered: Reolink Argus 2 Outdoor (£108.99). The Argus 2 is a truly wireless machine, with no cables required at all. If you live in an apartment, chances are you won't need to splash out on an outdoor security camera with all the bells and whistles.The ieGeek Wireless Solar Outdoor Security Camera is great in that it comes with a solar panel to continuously charge the inbuilt battery and provide power to the camera. An inbuilt It connects to the internet via a 2.4GHz wifi connection and can be used outdoors as well as indoors.1. Blink Outdoor - wireless, weather-resistant HD security camera, two-year battery life, motion detection, set up in minutes - 2 camera kit. "[EXTRACTO]"Blink Outdoor is a wireless battery-powered HD security camera that helps you monitor your home day or night with infrared...Jul 13, 2022 · The Best Outdoor Home Security Camera Deals This Week* *Deals are selected by our commerce team Ring Spotlight Cam Battery (2-Pack) — $349.99 (List Price $399.98) Arlo Essential 1080p Wire-Free... Oct 02, 2022 · 【Battery Powered & 100% Wire-Free 】ieGeek outdoor battery security camera comes with 10000mAh upgraded rechargeable batteries that will provide 3-6 months battery life on a single charge. Suggest to use with solar panel (not included). No power cord or network cable required, can be easily mounted indoor or out. The latest outdoor security cameras will work with just about any smartphone. The cameras themselves have also become extremely affordable. Plus, since they offer a wide field of view, you typically only need one camera to monitor the entire front area of your home, for example.An outdoor security camera can be a powerful deterrent to mischief makers. It will let you know instantly whether that bump in the night comes from a friend, foe, or furry creature. However, after reviewing dozens of cameras over the past five years, we've yet to find a perfect model.A good outdoor security camera system helps you to keep tabs on your property from anywhere and can act as a deterrent to unwelcome visitors. Motion detection will trigger the camera to start recording and send a notification to your smartphone so that you can review any activity around your home.Sep 07, 2022 · With the best outdoor security camera you can keep an eye on your property from your smartphone, from anywhere boise id news Sep 07, 2022 · With the best outdoor security camera you can keep an eye on your property from your smartphone, from anywhere Solar Battery Powered Wifi Outdoor Pan/Tilt Home Security Camera System Wireless. New. $101.63. $106.98 5% off. Free shipping. 5 watchers. 6. The best floodlight camera for Apple HomeKit: Eve Outdoor Cam. The camera — a battery-powered Google Nest Cam — attaches magnetically and via a power cable. Anyone considering installing security cameras outside their home should look at a floodlight camera first.It's one of the few outdoor home security cameras with an integrated stand, so it doesn't have to be mounted to a wall, although it can be if you'd prefer. That said, it requires a power outlet rather than a rechargeable battery, so this may limit outdoor use depending upon your setup.Wired or battery-powered? Indoor or outdoor? Nest Cams have the versatility to meet your changing needs. A battery-powered camera that goes just about anywhere.3An outdoor camera with a smart floodlight.A wired camera to see who's inside, lights on or off.Included alerts.Though they're a favorite of renters, battery-powered cameras aren't strictly for those on the go or wire-averse; these cams actually have much to offer anyone. Most battery-powered cams produce video in 1080p HD, the most common benchmark for video dimensions in home security cameras.If you like the idea of your security camera not being tethered to a wall for its power, a battery powered option is ideal, but you also don't want to have to change the battery out all the time. The Blink XT2 lasts for 2 years on AA lithium batteries, which is pretty impressive.It's one of the few outdoor home security cameras with an integrated stand, so it doesn't have to be mounted to a wall, although it can be if you'd prefer. That said, it requires a power outlet rather than a rechargeable battery, so this may limit outdoor use depending upon your setup.YUNSYE Solar Powered outdoor PTZ Camera,100% Wire-free WiFi Security Camera. Smart Pan/tilt/zoom-With a 355° horizontal and a 120° vertical, the camera can move up, down, left, and right. The 4x digital power zoom allows you to view more detail or more objects without sacrificing quality. celtic cross tattoosrust oleum spray paintA boom in wireless security cameras is inspiring a movement in DIY home surveillance. Nest Cam (battery, 2021) — Best security camera overall, runner-up. Operates on battery power, with a solar panel option to keep the battery charged. This third iteration of the company's indoor/outdoor security cam delivers tremendous value, including color night vision and local storage if you supply a...Oct 01, 2022 · Blink Outdoor is a wireless battery-powered HD security camera that helps you monitor your home day or night with infrared night vision. With long-lasting battery life, Outdoor runs for up to two years on two AA lithium batteries (included). After introducing its first wire-free, battery-powered indoor camera a few months ago, the company has now taken the wraps off a similar cordless outdoor camera that's rated for up to six months of battery life on a single charge and should help you keep an eye on your house's exterior.Security Camera Outdoor, Wireless WiFi 360° PTZ Camera, ieGeek 15000mAh Solar Security Camera Battery Powered, Home Surveillance Camera with 2-Way Audio, Motion Detection, 1080P Night Vision, SD/Cloud.One of the coolest features of the Blink Outdoor wireless battery-powered HD security camera is that it's supposed to have 2-year battery life. The camera is powered by two double lithium batteries and these are included. This comes with a free 30-day trial of blink subscription plan.And even the lower cost cameras are still really reliable, making setting up security on your property not only easy, but affordable too. In this round up we've covered a wide variety of outdoor security cameras to suit your needs and requirements. How to choose a wireless outdoor security camera.34. GE. Cync Outdoor 1-Camera 1080P Wireless Battery-operated Standard Micro Sd Security Camera System. Model # 93129828. Find My Store. for pricing and availability. 1. Cree Lighting. Connected Max Outdoor 1-Camera Wireless Battery-operated Stick Up Cam Micro Sd Internet Cloud-based Security Camera System. The good news is that several outdoor security cameras don't need a constant power source thanks to a battery pack. The battery in some cameras can be removed, while others require charging the entire camera. That's a big plus when trying to secure your home's exterior.Oct 01, 2022 · 【Battery Powered & 100% Wire-Free 】ieGeek outdoor battery security camera comes with 10000mAh upgraded rechargeable batteries that will provide 3-6 months battery life on a single charge. Suggest to use with solar panel (not included). No power cord or network cable required, can be easily mounted indoor or out. Tiseed 1080P WiFi Outdoor Security Camera, Floodlight Camera with Solar Battery Powered, PIR Motion Detection, Pan Tilt 355° View, IP65 Waterproof, Color PTZ 2K Security Cameras Wireless Outdoor, WiFi, Color Night Vision, Spotlight & Siren, Motion Detection, Battery Camera Outdoor.Additional accessories can be purchased to increase battery life, including long power cable and solar panel. If connected to such accessories, the camera should be mounted under a roof overhang where it is protected from rain, and the ambient temperature should be between 0-45°C when charging. mac miller poster Sep 28, 2022 · The Wireless Outdoor Camera provides stunning night vision up to 20m (65FT) of 4 infrared LEDs. 4 IR lights automatically sense ambient light and switch to night vision mode, the monitor distance is up to 50ft/15m. more. 【IP66 Waterproof & Wide Applicability】- The wireless cameras for home security have waterproof and dustproof housing to ... Oct 01, 2022 · 【Battery Powered & 100% Wire-Free 】ieGeek outdoor battery security camera comes with 10000mAh upgraded rechargeable batteries that will provide 3-6 months battery life on a single charge. Suggest to use with solar panel (not included). No power cord or network cable required, can be easily mounted indoor or out. The Ring Stick Up Cam Battery is a versatile battery-powered wireless indoor/outdoor security camera that records motion-triggered video and stores it in the cloud. Look for an outdoor Wi-Fi camera that can connect to either the 2.4GHz or 5GHz radio band to alleviate network congestion.Multi-User View at The Same Time One camera simultaneously monitors multiple users while supporting 4 users watch the video online. Solar Panel WIFI Camera 1080P HD, Wire-Free Battery IP Camera, Outdoor IP67 Water Proof, 2MP Security CCTV Video with Two Way Audio.Jul 20, 2022 · Outdoor battery powered security cameras are just as useful outside the home as they are in the more unusual workspaces that combine outdoor and indoor spaces, like farms and building projects. Security cameras need to be portable and mobile in these working environments, which may be temporary or physically far from power outlets. Get free shipping on qualified Battery Powered Security Cameras products or Buy Online Pick Up in Store today in the Electrical Department. RingSpotlight Cam Battery Outdoor Rectangle Security Wireless Standard Surveillance Camera in White (2-Pack).Sep 28, 2022 · Easy About Install and Setup, Waterproof: This battery powered wireless and cordless outdoor surveillance camera is easy to install and can be installed almost anywhere using the included tough brackets and screws. Withstand rain and temperatures from - 4 to 122 degrees F, protect your house, whether it's wind or rain. flynn o hara uniforms Tips on the Placement of Battery Operated Outdoor Security Cameras[ [Tips on the Placement of Battery Powered Outdoor IP Cameras]]. How to Protect Wire Free Outdoor IP Cameras from Vandals or Thefts. Battery Outdoor Security Camera Reviews & Top Picks (with Christmas Deals).But technological capabilities are only half the battle. Unlike an indoor camera, the best outdoor security cameras have to tackle rain, wind, snow and all sorts of other weather changes and still record watchable footage. Are you ready to build your own outdoor security camera system?See our picks for the best 10 Outdoor Battery Security Cameras in UK. ieGeek 360° Wireless PTZ Security Camera Outdoor, 15000mAh Rechargeable Battery CCTV Camera with Pan 355° Tilt 120°, 1080P Wifi Home IP Camera, PIR Motion Detection, 2-Way Audio, Cloud&SD Card Storage.Unfortunately, not all home security cameras are created equal. Some can detect motion and send alerts, some have two-way audio features, and some are solar powered and won't need their batteries replaced. Below is a roundup of some of the best home security cameras available to help you with...Jul 13, 2022 · The Blink Outdoor is a battery-powered weatherproof 1080p security camera that offers motion detection, cloud and local storage, Alexa voice control, and support for third-party smart devices ... Conico Outdoor Security Camera, Wireless Rechargeable Battery Powered Camera, 1080P... From $99.99 These include practical concerns such as how the camera is powered and mounted, the specs and features of the camera itself, and additional features, perks, and controls that the system may have. The Best Wireless Outdoor Security Camera for 2022.The wireless outdoor security camera can effectively help you screen visitors at your door. more 🔋【Battery Powered & 100% Wire-Free】COOAU battery security camera adopts the upgraded 10000mAh battery life is increased by 11% that standby time reaches up to 3-6 months. Jul 13, 2022 · The Blink Outdoor is a battery-powered weatherproof 1080p security camera that offers motion detection, cloud and local storage, Alexa voice control, and support for third-party smart devices ... Go through the battery powered wireless outdoor security camera reviews below and select the best that meets your requirement. #security_camera #arlo #reolink #blink #zomdo #zosi #lorex #swann. See more ideas about security camera, outdoor security camera, camera reviews.Oct 01, 2022 · Blink Outdoor is a wireless battery-powered HD security camera that helps you monitor your home day or night with infrared night vision. With long-lasting battery life, Outdoor runs for up to two years on two AA lithium batteries (included). Jul 13, 2022 · What is the best outdoor security camera with a battery? AHOME C1 The AHome C1 battery-powered security camera is a great budget-friendly indoor/outdoor surveillance cam. It is entirely wireless, which makes it the best battery-powered camera and perfect for any region. Besides, the IP65 waterproof casing protects the cam from damage. For as long as I can remember, I've been interested in smart home security systems and cameras. But ever since my kids were born, I've been obsessed with keeping my family safe. The first step toward protecting them and my home was finding the battery powered surveillance camera.34. GE. Cync Outdoor 1-Camera 1080P Wireless Battery-operated Standard Micro Sd Security Camera System. Model # 93129828. Find My Store. for pricing and availability. 1. Cree Lighting. Connected Max Outdoor 1-Camera Wireless Battery-operated Stick Up Cam Micro Sd Internet Cloud-based Security Camera System. Though they're a favorite of renters, battery-powered cameras aren't strictly for those on the go or wire-averse; these cams actually have much to offer anyone. Most battery-powered cams produce video in 1080p HD, the most common benchmark for video dimensions in home security cameras.Security cameras that are powered by batteries are known as battery-powered cameras. While installing wired security cameras is quite difficult, battery-powered cameras are simple to use and portable. So, every business or homeowner must have battery-powered cameras on their properties for their security. jobs hiring near me at 1434. GE. Cync Outdoor 1-Camera 1080P Wireless Battery-operated Standard Micro Sd Security Camera System. Model # 93129828. Find My Store. for pricing and availability. 1. Cree Lighting. Connected Max Outdoor 1-Camera Wireless Battery-operated Stick Up Cam Micro Sd Internet Cloud-based Security Camera System. Jul 13, 2022 · The Best Outdoor Home Security Camera Deals This Week* *Deals are selected by our commerce team Ring Spotlight Cam Battery (2-Pack) — $349.99 (List Price $399.98) Arlo Essential 1080p Wire-Free... As far as the best outdoor security cameras go, the EufyCam 2 is a more affordable alternative to Arlo's cameras. This battery-powered camera is simple to install, has a bright 2000-lumen light, and has a 2K camera that can digitally pan and zoom, so you can get a better look at who's outside.Solar Battery Powered Wifi Outdoor Pan/Tilt Home Security Camera System Wireless. New. $101.63. $106.98 5% off. Free shipping. 5 watchers. You can take a look at the workplace and office on a single monitor by a solar security camera. A solar security camera is famous for its independent power source and twenty-four hours surveillance. Ordinary close circuit cameras might stop surveillance due to power cuts and battery down.Though they're a favorite of renters, battery-powered cameras aren't strictly for those on the go or wire-averse; these cams actually have much to offer anyone. Most battery-powered cams produce video in 1080p HD, the most common benchmark for video dimensions in home security cameras. rooms with hot tubsThis review of the simplest outdoor battery powered security camera with smartphone app in 2020 can assist you do exactly that. Sure, you'll use an cord and clips to secure everything in situ , but what if you would like to mount your camera to the fence surrounding your property or up during a tree?Jul 13, 2022 · What is the best outdoor security camera with a battery? AHOME C1 The AHome C1 battery-powered security camera is a great budget-friendly indoor/outdoor surveillance cam. It is entirely wireless, which makes it the best battery-powered camera and perfect for any region. Besides, the IP65 waterproof casing protects the cam from damage. Learn more about how we test outdoor security cameras. All of our outdoor security cameras are installed properly outside of our test lab, monitoring real people. We run them for at least a week, so that we can tweak motion detection and find out how reliable or annoying each model is.Looking for a portable and battery-powered outdoor security camera for your home? However, most security cameras are wired, making it a tad inconvenient to mount it outdoors or at any location of your choice. And that's where portable or battery-powered security cameras come in handy.【Battery Powered & 100% Wire-Free 】ieGeek outdoor battery security camera comes with 10000mAh upgraded rechargeable batteries that will provide 3-6 months battery life on a single charge. Suggest to use with solar panel (not included). No power cord or network cable required, can be easily mounted indoor or out. Mar 23, 2021 · Security Camera Outdoor, Ctronics Wireless WIFI 360°PTZ Solar Security Camera, 10000mAh Battery-Powered Home Surveillance Camera with Spotlight Color Night Vision, AI Human Detection, 2-Way Audio,IP66 3,144 1 offer from $119.99 From the brand Get Smarter about your Security GX1S BATTERY POWERED CAMERA WIRELESS I WiFi I OUTDOOR I SECURITY Warranty Service Thanks for your shopping and trust. You are advised to adjust to "Low" Level when you install the camera outside.The Wyze Outdoor Camera is an easy choice for a balanced range of features and is a good option for a first-time security camera user. While there are some limitations, the combination of price, features, and ease of use make this a "sane prepping" choice for many introductory applications.Jul 13, 2022 · The Best Outdoor Home Security Camera Deals This Week* *Deals are selected by our commerce team Ring Spotlight Cam Battery (2-Pack) — $349.99 (List Price $399.98) Arlo Essential 1080p Wire-Free... dominos 5 dollar pizza xa