Anti-wolf Alarm Rechargeable Female Student Self-defense Keychain(Black)

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