[Bicycle Turn Signal]-- This bicycle track singal comes with an intelligent remote control. You can stay on the handlebars so you can display curves without affecting steering ability. Use the remote control to control the right/left indicator and provide the cyclist great safety at night or on rainy days. [USB rechargeable bicycle rear ]-- USB high speed charging, supports a variety of chargers, can be connected to a computer, car charger, USB socket, rechargeable , the indicator s up red when charging, green when fully charged. Creative and stylish appearance, well matched to all types of bikes, scooters, mountain bikes and road bikes. [Waterproof bicycle set]-- high water resistance of IPX6, which can be used for outdoor activities on rainy days, snow or dense fog. The front and rear indicator LED of the bicycle has excellent performance at night to ensure your safety. [Detachable design]-- single use/combined use. core consists of 30 yellow LEDs + 8 red LEDs with 5 modes (turn left, turn right, yellow on, red on, flash), 600 mAh internal lithium polymer battery. Up to 5-6 hours of battery life. weight design so you can ride without burden. [Package includes]-- 2 x indicators, 1 x wireless remote control