ITEM NAME:Universal Bike Bell Rechargeable Bicycle Horn Waterproof Durable Electric Bell Descriptio n Description: Ultra-loud Electric Bike Alarm Bell Electronic Bicycle Horn Bicycle Electric - This loud volume and mini size electric bike horn can reach 120dB. - Durable with full protection, IP65 level waterproof, anti-dust, shatter-resistant. - Separate switch design, control switch and bike horn are separated. - Rechargeable battery, which is environmentally friendly. It can ring more than 2000 times with a full charge. Specifications: Material: ABS+PC Color: random.Ultra-loud Electric Bike Alarm Bell Electronic Bicycle Horn Bicycle Electric. - Durable with full protection, IP65 level waterproof, anti-dust, shatter-resistant. 1pc electric bell. We want to make sure you are happy with our item.