1. 130dB high decibel alarm
2. Integrated design, strong and durable
3. With LED lighting
4. With low battery reminder
5. Working voltage: 4.2V
6. Working current: 112mA
7. Volume: 130 decibels
8. Battery: 3.7V 130mAh
9. Charging interface: Type-C
10. Applicable people: children, ladies, the elderly
11. Packing list: alarm x1, carabiner x1, charging cable x1
12. Size: about 10 x 3.1cm
13. Weight: about 28 grams