Voltage: 48V Size Of Handlebar: DIA 22MM Function: Battery Display Wire Length: 1650mm Wiring: Four Wire: Red color: +5V Blue Color: Ground Wire Green: Throttle Speed Control Sensor Signal Yellow: Battery Display Red light indicates supply status Yellow light represents undervoltage alarm status Green light represents the status of the battery display Normally, the yellow light is not . Please use it with confidence. Type: Throttle Throttle Type: 48V Li-Battery Size: Universal Usage: E bike,Electric Scooter,Balance Car,E ,Elect Features: battery Level Indicator colour:Black+silver Material:ABS+LCD Package Contents: 1 x Throttle Grip Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.