1. Material: ABS
2. Applicable devices: iOS 8.0 or above, Android 4.3 or above
3. Features: precise positioning, one-key call device, long standby time, high performance, low power consumption
4. Bluetooth version: 4.0
5. Bluetooth distance: 15 meters
6. Volume: 80 decibels
7. Battery: CR2032 button battery x 1 (delivery with battery)
8. Battery life: 6 months
9. Small size, light and easy to carry
10. Big volume buzzer alarm
11. Support remote photography
12. Dimensions: 37 x 37 x 5.6mm
13. Net weight: 8g/pc