1. Phone finder function ,you can find your phone easily.
2. it has smart search function 
3. The selfie fuction makes you take pictures to the fullest wherever you are. 
4. The memo function ,you could check the record of registered devices. 
5. Call function 
6. Loction mapping function.

Specifications
Material: ABS, Weight: 10g
Battery: CR2032H, Voltage: 2V-3.6V
Frequency: 2400-2483.5MHz
Communication Range: up to 50m
Buzzer: 90dB
Bluetooth: Bluetooth 4.0
Playback Time: Around half a year
For iOS 7.0 and above version:
iPhone5/5c/5s, iPhone6/iPhone 6 Plus, iPad4/mini/iPod touch 
For Android:
Bluetooth 4.0 and Android4.3and above version, 
support Galaxy S4/S5/S6/Note3/Note4