Remote Control - The Signal Pod is a wireless control system that is mounted on the head of the bike to easily control the taillight function for added safety while riding. 2-in-1 design , can be used as taillight (turn signal/stabilizer) and turn signal (left/right). With three settings, the LED arrows light up to indicate "Left", "Right" and "Danger", like a car or motorcycle. Long-lasting illumination: This bicycle tail light is rechargeable by USB and can work up to 8 hours in flashing mode after 2 hours fully charged. IPX2 Waterproof: IPX2 water resistance can withstand rainy days and humid climates, and the resistance in water is specially designed for outdoor driving. Simplified LED light guide: Good quality bi-color red-yellow LED. Rear light with USB charger with battery and spare!