Blink 4 Camera Wireless indoor/outdoor Surveillance Cameras. Blink Outdoor is a wire-free battery-powered HD security camera that helps you monitor your home day or night with infrared night vision. With long-lasting battery life, Blink Outdoor runs for up to two years on two AA lithium batteries (included). Blink Outdoor is built to withstand the elements to help you protect your home indoors or out, come rain or shine. See, hear and speak to visitors with Live View in real time and two-way audio features on your Blink Home Monitor app (live view is not continuous). Designed so you can set it up yourself in minutes. No wiring or professional installation required. Works with Alexa: use your voice to monitor your home through supported Alexa-enabled devices.