The solar panel detaches so you can adjust it to face the sun s strongest position. It includes a rechargeable lithium-ion battery and can maintain a full charge for up to 70 images per day with adequate direct sunlight. The Dual-SIM configuration of the CelluCORE 20 Solar allows it to automatically connect to AT&T or Verizon-whichever offers the strongest cellular network based on your camera s location. No need to compare with network strength maps! And thanks to its optimized antenna, you know you re always getting the strongest cellular signal possible. Product Features Integrated solar panel can be detached and positioned to face strongest sun position Rechargeable lithium-ion batteries (Inside solar panels) Maintains full charge for up to 70 images per day with adequate sun light Dual SIM automatically connects to the strongest network signal-AT&T or Verizon Optimized antenna High output IR LEDs for best-in-class night range and battery life Sorts images by weather, wind, moon & more Make setting changes through your phone 2 Year Limited Warranty First 30 Days Free ($15 value) Sub 1 second trigger speed Crystal clear 20 MP images 80 ft night and detection range HD Video saved to SD card 12AA removable battery tray