The Motorola Response Inhibit License Key (SKU: HKVN4499A) is designed to activate the Response Inhibit feature on a wide range of Motorola radios. Compatible with DP2x00/e, DP3xx1/e, DP4x0x/e, DP4x0x Ex, DP4x0x Ex Ma, SLx600, SL40x0/e, DM2000, and DM4x0x/e series radios, this key prevents outgoing transmissions in response to unsolicited incoming transmissions. This feature is essential in environments where preventing unnecessary or disruptive responses is critical for maintaining communication efficiency. The Motorola Response Inhibit License Key is perfect for users who need to control outgoing transmissions and ensure their radios only transmit when necessary, helping to enhance security and communication flow.