1. Model: PA04
2. Weight: 11 g
3. Size: 44 x 44 x 21 mm
4. Color: Black, red and blue
5. Material: ABS and silicone
6. Battery: 1 x CR2032 lithium button cell
7. Emergency alarm that calls attention to you when you need aid.
8. Ear-piercing 110 dB alarm helps call for help
9. When alarm is out of Bluetooth range of the phone, it will alert
10. Designed to look like a fashion accessory so assailants have no idea that it is a loud alarm
11. Bluetooth 4.0 Low Energy