Covert Acoustic Tube Earpiece Headset Mic for Kenwood TK380 TK385 TK390 TK480 TK490 Radio Security Door Supervisor Clear Acoustic Tube Covert Earpiece Earphone Headset PTT(Push To Talk) with built-in line mic microphone for Kenwood TK380 TK385 TK390 TK480 TK490 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.