Bicycle phone holder: Integrated bicycle phone holder with mechanical locking, the width can be freely adjusted within this range (6.4-8.6 cm), suitable for most cell phones on the market. The bicycle lighting device has silicone pads on the underside of the bracket and on both sides of the clip to prevent scratches on the phone. We upgraded from a flexible clip to a mechanical lock to hold your phone more firmly. Bicycle light front: This led bike light set has a brightness of 550 lumens and a two lamp bead design that ensures safe night driving. In order for you to see the cell phone navigation at a more appropriate angle, we designed the lamp bead part to be 45 up and down is adjustable. There are 3 modes for strong light, weak light and flash, in the brightest mode the running time can be 4 hours. Bike mount upgrade: To be compatible with more bicycle handlebars, we have developed a three-stage bracket with an adjustable structure. The bracket can be rotated 15 in the horizontal plane to increase the flexibility of the light in the forward direction. The bracket is a spin quick release structure. If you have damaged your bike rack in an accident, you can contact us for a new one free of charge. Bicycle light set Led battery: This lighting bike can be used as a power bank with an integrated 4000 mAh battery to charge your phones and other USB devices. There is a 4-grid power indicator next to the switch button on the powerbank bike, with which you can easily see the remaining power and ensure a timely recharge. It is also IPX4 waterproof, so don't worry on rainy days. Bicycle bell with several ring tones: This bicycle lamp has 5 built-in speaker sound effects. Long press to ring continuously, short press to ring twice. Up to 130 decibels, you can effectively warn passers-by and vehicles. Bicycle headlight is suitable for mountain bikes, racing bicycles, men's and women's bicycles, bicycle light is suitable for children's bicycles.