Main Features:
Anti-lost for pets kids elders and something valuable.
Bluetooth 4.0 connection.
Smart reminding: it will remind you of specified things.
Two-way paging: the anti-lost tracker and your phone will alarm simultaneously beyond a certain distance.
Tracking location: recording the track, locating.
Remote control camera shutter or recording: press the button to take a photos or recording .
No disturbing mode: can set mute in a certain time.
Built-in 50mAh 3V CR2032 cell battery .
Support iOS 7.0 and above, Android 4.3 and above ( should also support Bluetooth 4.0 ).
You can download the APP "E3-A" via scan the QR code in the picture or in Apple Store or Google Play.

Please Note:
The default effective Bluetooth alarm distance is 10m. You can also set different alarm distance through deploying different emission frequency.