Small, durable and lightweight, this Push-To-Talk (PTT) adapter will connect 3M PELTOR COMTAC/SWATTAC headsets to select Motorola radios and provide reliable receive/transmit functionality. When the real estate on your tactical vest is valuable, rely on the quality 3M PELTOR FL4000 Series PTT. Connects with Motorola GP320/340/360/380/640/680