TWOOC 120dB 4 Modes Rechargeable Bikes Waterproof Bike Horns Handlebar Bells

• It has 4 types of sounds. • Built-in 280mAh lithium battery takes only 1.2 hours to fully charge and works for 20-30 days, about 2,500 rings. • Long power consumption, standby time over 180 days. • Made of high quality ABS material, weatherproof and durable. • Easy to install with adjustable rubber band, suitable for 22 - 31.8mm handlebars. • Lightweight and waterproof, easy to install. • Designed to easily attach directly to your bike. • Loud sirens to attract people's attention on the street • Keep your child out of danger by warning or watching out for others Specifications: • Material: ABS + PC • Battery capacity: 280mAh • Charging time: 1.2 hours • Charging voltage: 5V • Charging current: 250mAh • Material: ABS + PC • Waterproof level: IP65 • Dimensions: 6.5x5x4cm (Product), 13x11x6cm (Packaging) • Weight: 70g • Package includes: TWOOC 120dB Waterproof Electric Charger Whistle T-002, Rubber Band, USB Charging Cable, User Manual, Packing Box • Available color: Black