1. Material: ABS 2. Volume: 120 decibels 3. Applicable people: children, ladies, the elderly, students, etc. 4. Can be hung on the bag, on the key, press the front button to give an alarm, press the back button to stop 5. For the elderly, night walkers, sports people, and handicapped people, press the button when they need help, and the 120dB alarm sound will immediately sound to attract others and get help. 6. With 3 button batteries, easy to replace 7. Simple operation, just click 8. The shape is small and exquisite, just like the size of a car remote control 9. Size: 7.5x3.5x1.3 cm 10. Weight: about 42 grams
