Flycross Smart Bike Tail Light with Turn Signals, Brake Light, Warning Electric Horn, USB Rechargeable Rear Bicycle Light with 6 Light Modes, Anti-Theft Alarm, IP54 Waterproof bike LED for 0 (3.7 V, 1500 W)  (bike, Pack of 2)

【MULTI-FUNCTIONAL BIKE TAIL LIGHT】Our bike tail light has five functions: warning light, brake light, turn signal, electric bell, and anti-theft, perfect for commuting and night riding. 【6 LIGHTING MODES & ELECTRIC HORN】The rear bike light packs 31 LEDs, with a maximum output of 160 lumens that can help to make yourself as visible as possible. With 6 lighting modes - Slow Flashing / Breathing / Fast Blinking/ Steady Light / Emergency Light / Turn Signal Light each of these is bright enough to feel safe. It also features an electric horn to alert pedestrians and drivers. 【INTELLIGENT SENSOR】The taillight will automatically light up to remind the drivers and pedestrians behind you when braking or passing through a tunnel or riding at night. In the intelligent mode ( Slow Flashing/ Breathing), the taillight will automatically turn on/off the lights according to the ambient brightness and if you stop the bike for more than 30 seconds, the lights will turn off which is very smart and saves power. 【ANTI-THEFT & WATERPROOF】The bike tail light with alarm is equipped with motion sensors. If a bike thief tampers with your bike or tries to carry it away, a 110 dB alarm will sound. This alerts the surrounding area and thieves usually stop their crime immediately. With an IP65 waterproof rating, it can be used in rain and snow weather. 【USB RECHARGEABLE】The bicycle tail light is USB-C rechargeable, built-in 1500mAh battery, fully charged can be used for up to 70 hours. When charging, the 1~4 grids flashing on the right turn signal correspond to the battery level. When the right turn signal fully stays on, the battery is fully charged.