Multifunctional Bicycle Headlight 【5 In 1 Function】Not just a bicycle light and warning light , but also high decibel horn and bike phone holder. It can also be used as a temporary power source when it is necessary to meet the charging requirements for outdoor riding. 【About Bike Head Light】The 500-lumen LED lights have four lighting modes. Can be adjusted up and down 50 angle of illumination, Adapt to various road conditions. It can be used for 6-12 hours normally . 【Bike Phone Mount】Universal adjustable width bicycle phone holder, Accommodates phones up to 6.5 inches.There are silicone protective pads on both sides to prevent damage to the phone. Built in 130dB bike bell, which you can easily press the button to warn the others when emergency. 【USB Rechargeable & Power Bank】The bike light has a built-in 3000mAh lithium battery with charge indication, and can also be used as an emergency power source for outdoor cycling. Any device with USB port to meet your charging needs.