Material: ABS Size: 60mm*130mm Clamping range: 60-90mm Use time: 6-12 hours Charging type: USB charging Charging time: 5 hours Battery capacity: 3000 mAh Output voltage/current: 0.8A Front light brightness: 500 lumens Lamp beads type: LED lamp beads*2 Light mode: strong light/low light/burst flash Speaker decibel: 130 decibels Sound mode: five sound modes Mobile phone size requirements: 4-6.3 inch mobile phone Product features: Bright double T6 headlamp, brightness 500 lumens, lamp cap can adjust the angle up and down, solve the problem that the old model can not shine on the road. The mobile phone rack adopts one key locking function, which makes it convenient to take and put the mobile phone, and the base can rotate freely to adjust the irradiation angle A lamp with multiple functions can greatly save the space on the handlebar and is easy to carry Packing list Bicycle Light * 1 USB cable * 1