Remote Controller: Mini Remote Controller:2.4Ghz Waterproof grade:IP67 Frequency: 2.4G Application of ESC: All ESC Power:-po 3.7v 400mAh(included) Control: PWM Voltage: 3.7V Output width: 1-2 milliseconds Stroke: 0%-100% Reset: automatic return to zero Remote control distance: 10M Charging : wireless charging Charging cable socket: USB Charging voltage: 5V Charging current: 500MA Charging time: 2H Receiver: Frequency: 2.4G Operating voltage: 5V Link button: Yes Out of control protection: Yes Waterproof level: not waterproof Channel: 1 Suitable for : Electric Surfboard and skateboard Note:Receiver is not waterproof. Material: plastic colour: black Package Contents: 1 x remote control 1 x receiver 1 x charging base 1 x charging cable 1 x lanyard 1 x Chinese and English manual Only the above package content, other products are not included. Note: Light reflection 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.