? ? ? Long battery life bike tai light ---- M2, which maintains its compact, rechargeable and waterproof design, has been greatly improved in every way to be the champion cycling taillight in duration. ①better autonomy, supporting up to 90 hours lighting once charged full. ②exclusive steady mode with 30% more brightness. ③more than a bike spotlight, which also serves as helmet light, backpack light, dog light, scooter light, wheelchair light and wherever you need it.

? ? Unique lighting modes ------ ?the bicycle tail light offers 5 unique settings with high brightness and excelent duration: steady mode(6 hours), flash mode (90 hours), strobe(15 hours), new meteor flash (23 hours) and stylish taichi flash(27 hours), ideal for long-distance or team cycling on & off road.

? Waterproof Ipx 5 & USB rechargeable bike back light ---- with sealed housing, our led light is designed to be resistant to water and rain, which is your solid companion in bad weather. 2 hours charging = 6 to 90 hours working. For a quick charge, just connect the cycling light with any USB devices such as power bank, car charger or ac outlet adapter. (Please fully charge it before first using when you receive the light.)

? Fits every bike ---- This bike light rear installs in seconds without tools for all type of bikes, road bike, mountain bike mtb, hybrid or commuting bike.

? Packing information ---- 1 x cycling light, 1 x rubber band and clip, 1 x USB - Type C charging cable and 1 x user manual.