Bicycle Small Parts Cycling Bicycle Electric Bell This Electric Bell with high volume ringtone and long standby is very convenient for your cycling trips. Features: Compact size and light weight with high volume of sound. Built-in 280mAh lithium battery takes only 1.2 hours to full charge and works for up to 20-30 days, about 2,000 rings. Long power consumption, standby over 180 days. Made of high-quality ABS material, weather-resistant and durable. Extreamly easy to install with the adjustable rubber band, suitable for 22 - 31.8mm handlebars. Specifications: Material: ABS + PC Battery Capacity: 280mAh Charging Time: 1.2 hours Charging Voltage: 5V Charging Current: 250mAh For Handlebar: 22-31.8mm diameter handlebar Waterproof Level: IP65 Size: 49 * 66mm / 1.9 * 2.6in Weight: 40g / 1.4oz Package Size: 91 * 68 * 43mm / 3.6 * 2.7 * 1.7in Package Weight: 70g / 2.5oz Package List: 1 * Electric Bike Horn Bicycle Bike Bell 1 * Rubber Band 1 * Charging Cable 1 * User Manual All Products From Us Have Undergone Strict Quality Checks. If There Is Any Quality Problem Or You Are Not Satisfied With The Product Contact Us. We Will Give You The Best Solution.