ROCKBROS Bike Handlebar End Plugs Light, Brake Sensing Rear Bike Light, Rechargeable Light for Bicycle

SYNC MODE: Power on, then double-tap the button of the bike back light. A green shimmer signals Sync Mode - both lights dance in harmony, pulsating at the same frequency in the same lighting mode
IPX6 WATERPROOF: The rechargeable bike light do IPX6 waterproof process, when facing sudden rain or snow, the lights can easily cope with it
FIVE LIGHTING MODES: Our bike lights for night riding illuminate your path with low, medium, and high brightness settings. Choose from Fast Flash, Breathing Flash, Lightning Flash, High-Frequency Flash, or Steady On. With each mode, enjoy 7-13 hours of continuous lighting, catering perfectly to your travel needs
INTELLIGENT SENSING: Attuned to light and vibration, bike safety light rests during daylight, awakening only for braking. Dim surroundings trigger automatic illumination. After 30 seconds of stillness, it dozes off, rekindling at the vibration
EFFORTLESS INSTALLATION: Unbox convenience with included mounts and tools for a swift setup. Stuck during installation? Find guidance within the package or reach out to us for assistance