: Meilong Colour: Black material: plastic Whether to use battery: Yes Battery capacity: 200mah Charging time: about 2 hours Life time: about 2 hours Speaker volume: 120 decibels Installation method: fixed with silicone plate without restriction Product accessories: strap*1+charging cable*1 Product weight: 53g Product size: 3.4*3.4*6cm Features: One-button alarm, USB direct charge, high-decibel speaker Tips:We serve you wholeheartedly, and the customer service online will answer any questions about your purchase. Specifications: 1. USB direct charging design: either plug in a power bank or direct charging, so you dont have to worry about being unable to use it due to lack of power when traveling. 2. Multi-mode design: It can be used as a car bell or as an alarm, long press the left button to switch, one thing, dual purpose, safe and anti-theft. 3. High-decibel horn: four ringtones, the sound is up to 120 decibels, the sound effects can be switched at will, and it is more convenient to remind when riding. 4. Small body: can be installed on the handlebars, without affecting braking/shifting or other operations, and without increasing the burden of riding. 5. Safe and stable: The silicone plate is fixed with a strap to prevent the handlebar from being scratched. It is suitable for most bicycle handlebars on the market. Package Included: Bicycle Horn*1 Band*1 Charging cable*1