How to the mitter to the receiver? 1).Check and make all the wires are mounted,and the remote is CLOSED,insert the plug into CH3() on the receiver;2).Switch on the ESC,you can see the receiver red light flash; 3).Press and hold on the button on the remote and then turn the remote on; 4).You should notice the imitter go from flashing red to solid red,and also the solid red of the receiver; 5).Once you see a solid red light, you now know the two are binded together,and please pull the plug out (this is important,so the remote can record the throttle mid to realize the fail safe) 6).Then you can test it again by turning off the controller and it should flashif you turn the on mitter back on it should go back to solid redBefore running,it's better to test the fail safe fuction by closing the remote,if the motor didn't move,so the fail safe fuction is in good condition,when you find the motor is moving,you have to repeat the step No1- No6 above Board Category: Flat-Plate Applicable People: Men Type: Electric Skateboard Frequency: 24Ghz Battery: 37v 500mAh Li-po Battery Channel: 2 channel increase the throttle range about 15%; add an extra antenna inside to strengthen the signal. Better quality lithium battery. Mini Remote Controller 24Ghz Weight: 48g Frequency: 24G Channel: 2 channels (throttle and LED light) Application of ESC: All ESC :Li-po 37v 500mAh(included) Suitable for : Electric skateboard longbaord USB Charge spot (USB line do not inclueded,as it is suitable for normal USB line) colour:black Material:plastic size:100x52x20mm Package Contents: 1 * remote control 1 * receiver 1 * USB charging cable 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.