Generic JK remote for Backfire boards: compatible with Hammer Sledge 2WD or 4WD 2.4G Radio Rechargeable battery 4 Speed Mode Digit screen FAQ for the remote: Q: How to pair the new remote to the board? Press and hold the power button on the board until you see it flashing quickly, press and hold the power button on the remote, after about 5 seconds, the remote will pair to the board. Q: How to change the speed mode on the remote? Press the speed mode button on the remote(beside the power button): the digit screen will show Eco mode or Sport mode. Q: How to change to reverse mode? Double click on the speed mode button the remote, it will change from forward to backward, double click again, it will change to forward mode. Q: Which models can the remote pair to? Backfire Hammer Sledge