The RF Ready Grip Sender Only is available to add additional handles to a RF Ready Grip Kit. This is the same handle that is included with the RF Ready Grip Kit (see HS302181 RF Ready Grip Kit for details). Multiple handles (up to 10) can be programmed to one receiver. (Please note: the frequency of the RF Ready Grip Sender Only must match the frequency of the receiver box. The frequency number (example: RF915) is on the front of the receiver box, installed near the power unit).