Low power remider When power is less, The buzzer/beep sounds once every minute. How to charge It is charged by Standard 5V charging,current is not limited, can use Android phone charger.The indicator light is red when charging,red is off after charging, about 4 hours full charging.

About the Items:

• 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 Type controller, touch alarm, lock on key and the release key is remote control, distant long than 30 meter.
• Installation and Removal Easily:rubber band,fits for mountain bike,road bike,bicyle which handlebar is 22-31.8mm diamete

• update remote control material is plastic, more sensitive and more comfortable

• Name: Bicycle electric horn          
• Battery capacity: 1300 mAh        
• Life time: more than 20 days
• Features: large-capacity battery, long battery life, waterproof design, anti-theft alarm, 
• comparable to the electric bikes horn effect
• 2 Type controller, touch alarm, lock on key and the release key is remote control, distant long than 30 meter.
• Fixed clip: L type, default send L type
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• Packing list: 
• 1 x Bike bell 
• 1 x Charging cable 
• 2 x Remote control (bell with alarm including，only bell model not including controller)
• 1 x Fixed gasket 
• 1 x Fixed bell

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  • When full charging still sound buzzer what should i do: 
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  • Remote control how to code:
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  Buyer Real Picture Show