Tenq FBI Style Covert Acoustic Tube Headset/earpiece with Vox-ptt Switch for Motorola Mth600 Mth650 Mth800 Mth850 Mtp850 Mts850 Talkabout Radio Walkie Talkie VOX-PTT Switch Clear Acoustic Tube Covert Earpiece Earphone Headset PTT(Push To Talk) with built-in line mic microphone for Motorola Tetra MTH800 MTH850 MTP850 MTH650 MTH600 Radio Security Door Supervisor. Clip this hands free earpiece onto your shirt and begin using your radio device to communicate discretely and easily, whether you're in security, retail, or hospitality. Provides excellent durability, reliability and performance in low-profile environment. Ideal for demanding covert security applications where sound clarity and earpiece durability are of paramount importance. Excellent for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments.