Covert Acoustic Tube Mic Earpiece FOR Motorola Radios CP88,RDV,XTN,VL50 etc IMPORTANT NOTE: Please refer the 'Product Description' section for the list of the supported models. Contact the seller / Amazon seller support for any issues and clarification 1.2 pin Clear Acoustic Tube Covert Earpiece Earphone Headset PTT(Push To Talk) with built-in line mic microphone for Motorola Radio Bodyguard FBI Security Door Supervisor 2pin. 2.Great for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments.