TOPTREK Bicycle Bell 100db Cycling Electric Bike Bell USB Rechargeable IP65 Waterproof Anti-dust Mini Size Bicycle Horn Certified by CE and ROHS 4 Sound Modes Ring for Mountain Bike/Road Bike/BMX/MTB

Specifications:
Material: ABS+PC
Weight: 40g
Size: 49*66mm
Color: Black
Max Decibel: 100db
Sound Modes: Metal bell, Whistle horn, Tram bell, Vibration bell
Battery Capacity: 280mAh
Voltage & Current: 5V-250mAh
Charging Time: 1.2 hour Charging
Indicator Light: Red light when charging, green light when full
For Handlebar: 22-31.8mm diameter handlebar
Waterproof Level: IP65

Notice
In order to maintain waterproof performance, please remember close waterproof cover after charging.
Installation and removal easily by rubber band, but just suit for 22-31.8mm diameter handlebar