4 In 1 Multifunction Solar Bike Light Mobile Phone Holder 4000mah Power Bank Bike Bell LED Bike Lights Walkbee New ModelFeatures 1Multiple uses: Not only bicycle headlights but also mobile power cell phone holders and bicycle bells. 2USB rechargeable: This bicycle headlight has a built-in 4000mAh rechargeable lithium battery with a running time of 8-12 hours. It can be charged from your computer or any device with a USB port. No more wasting battery money! And with the 4000 mAh super capacity + solar charging you can charge your phone while riding a bicycle without worrying about power failure or power failure. 3Multi-function more than bicycle lights: Can be used as emergency flashlights three-mode lights. Place it in the car basement loft and first aid kit. Use it in running jogging hiking camping walking dogs cycling changing tires night family/child activities power outages etc. Place the screwdriver in the toolbox install the bicycle light and disassemble it in 2 seconds without using any tools. 4Suitable for all mobile phones: This versatile bicycle phone holder can be securely attached to any 4-6.3 inch wide phone! And high quality hard plastic will not break. Unlike rubber silicone mesh is very durable. 5High decible bell: Built-in 130 DB bicycle bell the sound is big enough to remind you. It has five sound modes that can be switched by pressing and holding for 4 seconds. Specification Product Name: Multi-function bicycle lightMulti-function: speaker mobile phone holder headlights mobile power Solar chargingSize: Suitable for 4-6.3 inch mobile phones width adjustment 55-80mm height 105mmBrightness: 550lmLight source adjustment: three gears highlight low light strobeSpeaker description: 5 sound modes 130db high decibel long press 4s or more can switch the sound mode short press continuous sound twice long press continuous ringBattery capacity: 4000mAh can be used as emergency mobile powerCharging method: USB chargingCharging time:4.5hUse time: 6-12h Package List 1 x bicycle light1 x switch1 x base2 x soft rubber gasket1 x USB charging cable