This dummy radio is getting popular and you can get one from Gunsworkshop complete with instructions on how to install a radio inside to make it "work" with your favourite radio headset. A Motorola Talkabout T5228 or smaller and with a headset input will fit. It will fit most of the airsoft PTT sets in the market, as long as these have the Motorola 1-pin feature. This will be available in mid-April 2009.