Bike light is made of PC and ABS material, durable to use. Its directional flashing indicates that night travel safety factor is greatly enhanced. High quality remote control LED directional light is used for night use, such as cycling, baby carriage, jogging, walking, road emergency and camping. Installation steps 1. Take out the tail light and silicone strap 2. Put the silicone strap on the tail light 3. Attach the tail light to the bike 4. Take out the remote control, fixing bracket and silicone strap 5. Put the bracket strap on the remote control 6. Install the remote control on the bicycle handlebar Remote control operation 1. Left button: the left turn signal flashes 2. Turn on the right: the right turn signal flashes 3. Main light switch: red warning light 4. Press the main light switch twice: red and blue flashes 5. Press the left and right lights at the same time: the left and right turn signals flash at the same time 6. The main light switch can be turned on at the same time as the left and right lights Item Name: Bike Light Material: PC, ABS Lamp Beads: 4 Blue SMD/5 Red SMD/30 Yellow SMD Brightness: Red Light 10-15LM Light Color: Main Light Red, Left and Right Turn Lights Yellow Battery: 500 mAh (Included) Life: 30000 Hours Life Time: 4-5 Hours Gear Position: Main Light: Always On-slow Flashing Features: Remote Control, Easy to Install, Convenient Light Size: 12.5cm x 4cm x 4.5cm/4.92" x 1.57" x 1.77" (Approx.) Remote Control Size: 5cm x 4cm/1.96" x 1.57" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bike Light 1 x Remote Control 2 x Silicone Strap 1 x USB Cable 1 x User Manual