BLE Anti-lost!

BLE4.0BLEiphone/ipad 1iphone2iphone/ipad3iphone/ipadiphone/ipadGPS - - - 11 BLE Anti-lost Alarmbase on Bluetooth 4.0 technology, specially made for iPhone & iPad. Simple and handy design, easy to use. Features:- Bluetooth low energy connection in a chip - Bluetooth low energy peripheral role- 1 button battery can use more than 1 yearNote: Continued use of GPS running in the background can dramatically decrease battery life.