Treadmill remote control is not a universal model. Before purchasing, please confirm that the appearance of the remote control is consistent with ours, or you can directly tell us your treadmill model or the appearance of the remote control, and then place an order. It needs to be used in conjunction with a treadmill before use. Walking Pad Remote compatible with model AD-4000 Plus, DK-38AB-2, UT-38AB IY