【Professional 7/24 SERVICE】All ROCKBROS products we sold are covered with a one-year guarantee
[Extended Battery Life & Intuitive Power Display] - Stay powered during your rides with the 400mAh Li-ion battery
and is equipped with a waterproof zipper
[High-Intensity LED & Brake Sensing Advancement] -Illuminate your surroundings with our rear bike light's high-lumen COB LED
You can read your data more easily and clearly no matter day or night
Built-in Power Bank 150LM USB Rear Bike Rack 【Professional 7/24 SERVICE】All ROCKBROS productsVersatilityDual end mounts Top for mounting code meters, bottom for hanging bike lights. One cable fits all: Type C, Lighting, and Micro USB. It can charge bike lights, odometers, GOPRO, and phones, ensuring you're prepared for emergency situations. 5000mAh Large Capacity& 4 Modes Long press for a warning light, boosting ride visibility. High light(150lm), low light(80lm), double flash, breathing flash. Up to 12 hours of use on a full charge in high