800 lumen headlight with 9 modes, 150 lumen tail light with 6 modes, engineered for use on mountains, roads, and commuting Built-in Enhanced Cycling Optics� expands your field of vision with an extra wide and long range beam compared to typical lighting optics Freely adjust the tail light`s brightness of Steady mode and the flash tempo of the flashing modes with the simple 2-button interface USB rechargeable internal headlight battery lasts up to 110 hours, and tail light...