New, unused. I'm selling because I have a few extras. The box is not included (to save on shipping costs) m(._.)m Bike rear light with brake sensor, USB Type-C for bicycles. I also use it on my Trek. (Last photo is my personal item) Auto setting: It turns on automatically in dark places. It turns off automatically after 30 seconds in bright places. Manual setting: Always on See the photos for details. #DeRosa #DEROSA #Campagnolo #Wheels #CarbonWheels #Frame #Bicycle #High-endBicycle #Pinarello #PINARELLO #Colnago #Italy #RoadBikeFrame #Bike #New #NewBike #Trek #TREK #Time #Felt #FELT #TIME #Look #LOOK #Cervelo #Crossbike #Mountainbike #Bianchi #CycleJersey #CycleWear #RoadBikeWear #CycleComputer #CycleCom #Garmin #Bryton #GIANT #giant #Giant #Giant #Specialized #BMC #Tarmac #Madone #Canyon #CANYON #105 #Ultegra #DuraAce #Merida #MERIDA #Bontrager