Bestbuy offers Blink - Outdoor (3rd Gen) Wireless 1080p Security Camera with up to two-year battery life - Black for $39.99 (orig. $99.99) with free shipping.

Product Description:
Blink Outdoor 1 Camera System – wireless, weather-resistant HD security camera with 2-year battery life and motion detection 

• Battery Life
  With long-lasting battery life, Outdoor runs for up to two years on a single set of AA lithium batteries (included).
• Weather Resistant
  Outdoor is built to withstand the elements to help you protect your home inside or out, come rain or shine.
• Live View and Motion Detection
  See, hear, and speak to visitors with live view or get motion detection alerts on your phone in the Blink Home Monitor App.
• Blink Subscription Plan
  Record, view, and save events in your Blink app with a free 30-day trial of the Blink Subscription Plan. Then, subscribe for just $3 per month per camera, or $10 per month for unlimited cameras at a single location.
• Local Storage
  Save videos and photos from up to 10 Blink cameras connected to the Blink Sync Module 2 locally in your home and view them through the Blink app or the computer by plugging in a USB flash drive (sold separately) for no additional fee.
• Works With Alexa
  Go hands-free with Alexa. Stream live video, play recorded clips, arm and disarm your camera, be alerted to motion, and more.