Power Voltage: 48V Size Of Handlebar: DIA 22MM Function: Battery Power Display Wire Length: 1650mm Wiring: Four Wire: Red color: +5V Blue Color: Ground Wire Green: Throttle Speed Control Sensor Signal Yellow: Battery Power Display Red light indicates power supply status Yellow light represents undervoltage alarm status Green light represents the status of the battery display Normally, the yellow light is not bright. Please use it with confidence. Type: Throttle Throttle Type: 48V Li-Battery Size: Universal Usage: E bike,Electric Scooter,Balance Car,E moto ,Elect Features: battery Level Indicator colour:Black+silver Material:ABS+LCD Package Contents: 2 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.