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HIGH DB LOUD ELECTRIC BIKE HORN. Small volume of shape,big volume of sound, comparable to the electric bikes horn effect.
DURABLE AND CONVENIENCE: 1300 mAh lithium battery ,can be android phone USB rechargeable,can be sound 2000 times,about 20-30 days. Alarm standby 150h, charge and discharge time more than 300 times. IPX4 Waterproof,Anti-Drop,
2 KINDS REMOTE CONTROLLER.touch alarm, lock on key and the release key is remote control, distant long than 30 meter.
INSTALLATION AND REMOVAL EASILLY. Rubber band,fits for mountain bike,road bike,bicyle which handlebar is 22-31.8mm diameter
WATER RESISTANT. IPX4. USB rechargeable with built-in lithium battery
Bicycle Bell Electric Horn Alarm Loud Sound Horn Ring USB MTB Road Bike Safety Anti-theft Alarm Fit 22-31.8mm Handlebar Cycling Bike Finder Remote Control. - B077SJR2NB