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). Store video clips and photos in the cloud with the Blink Subscription Plan and save events locally to the Blink Sync Module 2 via a USB flash drive (sold separately). Outdoor is built to withstand the elements to help you protect your home inside or out, come rain or shine. Designed so you can set up yourself in minutes. No wiring, no professional installation required. Get motion detection alerts on your phone with the option to customize motion zones in the Blink Home Monitor app so you're only alerted when you need to be. See, hear, and speak to visitors with live view in real time and two-way audio features on your Blink app. Works with Alexa - use your voice to monitor your home through supported Alexa-enabled devices.