1. UNIQUE DESIGN: Includes 2 turn signal lights (right and left) and 1 wireless remote control. This bicycle taillight can be installed on a single location such as a seat post, or the left and right lights can be separated and mounted on both sides of the rear frame to suit individual preferences. 2. FIVE LIGHTING MODES WITH ALARM: The bike turn signals offer five lighting modes. Use the remote control to switch between left turn signal, right turn signal, steady yellow light, steady red light, and flashing strobe mode. Clearly indicates your riding direction to pedestrians and surrounding traffic. 3. WIRELESS REMOTE CONTROL: The taillight is operated via a wireless remote that mounts on the handlebar for easy access. Control the light functions at any time. Note: Maximum operating range of the remote is 3-4 meters. The remote is rechargeable when battery power is low. 4. HIGH BRIGHTNESS: Features high-quality LED beads with 120 lumens output. Provides excellent visibility up to 50-100 meters, enhancing safety by alerting nearby pedestrians and vehicles during nighttime or adverse weather conditions.