1、Wireless remote control, tail light can easily controlled by small remote control fixed on bike, including left turn and right turn prompt mode, normally on, slow flash, fast flash, three mode warning light.2、Main purpose of bike tail light to make easier for vehicles behind you to find you. With this taillight, can ride most of the night on bike lanes and dimly lit suburban streets to keep you safe.3、Because USB rechargeable, red light on when charging and green light when full charged, as long as you have portable power supply, charger or laptop, will work normally, convenient and fast charging.4、Waterproof bicycle light can play excellent role in the light rain, help you to ride freely, but do not soak, remember to dry in time, prolong the service life.5、Angle can adjusted, silicone strap matched with rotatable base, practical and convenient, can effectively prevent glaring.1 X Turn Tail Light1 X Remote Control1 X Turn Tail Light Fixed Frame1 X Remote Control Fixed Frame2 X Silicone Strap1 X USB Charging CableCondition: Item Type: Bike Remote Control Turn Tail LightModel: BK600Material: ABS + Electronic ComponentsOptional Color: Black Side, Red SideLight Chip Type: LEDLight Color: Red Light, Turn Yellow LightBattery Capacity: 500mah Lithium BatteryCharging Time: 2 HoursDischarge Time:2.5 HoursWorking Voltage:3.7VWeight: Approx. 30gProduct Size: Approx.8.5x2.2x2.2cm/3.35x0.87x0.87inchRemote Control Size: Approx. 5x4.5cm/1.97x1.77inchProduct operation instructions:1. SwitchMatching frequency: Open turn signal light, when main light on, press main light switch function button of the controller to keep the light and controller at the same frequency2. Main light function controlClick: Main light is on and enter long duration lighting mode. Click again to enter slow flicker mode. Click again to enter quick flashing mode. Finally, click it to turn off the main lightLeft button: click, left turn signal light flashing 5 timesRight button click, right turn signal light flashing 5 times