KMASHI USB Rechargeable Bike Light, Waterproof LED Bike Headlight with 4800mAh Portable Charger and Bluetooth Wireless Speakers Perfect Bike Light: Three Lighting Modes provided with Bright Light for 16hrs, Normal Light for 32hrs & SOS Light for 24hrs if full charged, Lighting Distance is up to 164ft. Meanwhile, Humanized Design with IP66 will absolutely help you even under Bad Weather. It is perfect for Night Activities, Adventure or any Emergency Circumstances. Rechargeable & Reliable: Used Premium Rechargeable Battery and Intelligent Protection Chip to help you save money and keep long lifespan. The KMASHI Bike Light can be full charged within 8hours with 1A input, easily connect the provided USB charge cable to the Charger Adapter or Computer to charge it. Multifunction & Wireless Freedom: This product is a mass-market device with Bike Light, V4.0 Speaker via Bluetooth or TF Card and 4800mAh portable charger, which supports hands-free phone calls and outstanding Bluetooth connection range up to 33 feet. It will definitely rich your leisure life during riding, picnic and ect. Premium Quality: Installed the Bike Light to your bike easily based on the provided pictures and all bike accessories included. Waterproof, Dust-proof and Shockproof features prevent the Bike Light perfectly from damage. Package Included: 1*KMASHI Bike Light, 1*Micro USB Charge Cable, 1*Hook, 1*Bike Mount, 1*User Guide, 1 Year warranty and Friendly Customer Service. Do not put into the fire or heat Do not put into the water or wet Please don&#039;t disassemble or reinstall this prodcut without authorization Don&#039;t throw this product into the trash can directly Please place this product for away from children Before using the product, please check the voltage specification requirements. Please pull out the power cord if not use this prodcut In orer to avoid obstacle of product cooling, don&#039;t cover or package this product with paper or other items during charging. If this prodcut is smelly,noisy or overheating, please place it far way from person and other items,then find us for solutions. Drop resistance, dust proof, waterproof external battery, speaker and LED flashlight function. Adcance Technology: Newest wireless 4.0 technology. Lower Power consumption.Faster and more stable transmission. Multi Play Mode: Support wireless and TF card to play music. Long lifetime: Adopt 26650 lithium battery cells. Up to 1000 times charge and discharge cycle. Safety Protection: with intellegent protection chip, overcharge, over discharge, short circuit, solfware and hardware protection. Wide Range of Applications: Smartphone, tablet and other 5V input digital products Meet Many Required Standards.