AOER Covert Acoustic Tube Earpiece Headset Mic With Finger PTT for Kenwood Radio TK3118 TK3130 TK3131 TK3160 TK3170 TK3173 etc 2pin 2 pin Clear Acoustic Tube Covert Earpiece Earphone Headset PTT(Push To Talk) with built-in line mic microphone Finger PTT for Kenwood Wouxun Puxing Quansheng Radio Security Door Supervisor 2pin. 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.