Features1It sends signals in different modes via three easytouse buttons on a wireless controller that control the bicycle's turn signal. 2The remote controller is installed on handlebar and it is easy to control during riding, suitable for mountain bike and road bicycles. 3With 500mAh Liion battery in the tail light, the rear light can be fully charged in 2 hours and work for about 5 hours at constant brightness. 4The bike light comes with a charging cable and it can charges from the computer, power bank or any device with a USB port. 5It can resistant to the rainy days and humid climate, waterproof designed for outdoor bikes.SpecificationItem Type:WirelessRemoteControl Bike Turn SignalMaterial: Plastic ABSColor: BlackLight Size: Approx. 125x40mm/4.9x1.6inRemote Controller Size: Approx. 40x51.5mm/1.6x2.0inWeight: Approx. 154.0g/5.4ozAccessories: Bike Light,Bike Light InstallingStrap, Remote Controller,Remote Controller Mounting Base, USB Cable, ManualLight Battery: Li-ion BatteryLight Battery Capacity:500mahLight Battery Voltage:3.7VRemote ControllerBattery:Button Battery( Ship Without Battery)Remote Controller Battery Capacity:260mAhRemote Controller Battery Voltage: 3VRemote Controller Battery Model:CR2032Light Charging Time: 1-2 HoursLight Working Time: 4-6 HoursWaterproof Rate:Daily WaterproofInstruction:1.When charging, remove the tail light, open the rubber charging port protective cover on the back of the tail light, insert a Micro plug for charging. The red indicator light is for charging, and the green light will change when the battery is full.2.The car light has been matched with the remote control when it leaves the factory. If it needs to be rematched, long press the switch button of the tail light until the power indicator flashes, then press any button of the remote control for code matching, and then it can be installed and used.3.Combine the taillights and remote controls with the appropriate accessories and install them separately into the vehicle.4.In the course of use, if you forget to turn off the lights, the left and right turn signals and the left and right buttons of the remote control will be synchronously extinguished 2 minutes later, the warning buttons of the remote control will be automatically extinguished 10 minutes later, and the warning lights will not be extinguished (if the remote control continues to use, it will enter the normal state).Package List1 x Bike Light1 xRemote Controller Mounting Base1 xBike Light InstallingStrap1 x Manual1 xRemote Controller1 x Charging Cable