Power: Built in rechargeable battery - 20 hours working time. Connection: Connect to the holder using Bluetooth - compatible with Android 8.1 & iOS 10.0 and higher systems. Size: 9.3cm x 9.3cm x 16.8cm. Tracking: Object and face tracking with the help of AI enhanced technology means you can film yourself and the world with more focus. Phone Holder: Enhance your selfies and videos with this 360° rotation auto face tracking phone holder. 360° Rotation: The phone holder enables you to turn your phone 360° whilst filming as well as 27° forwards and backwards. | 360° Rotation Auto Face Tracking Phone Holder | Wowcher