GoodQbuy&reg; Surveillance Covert Acoustic Tube Earpiece Headset for Kenwood Radio NX-200 TK-180 TK-380 TK-480 TK-2180 TK-3180 TKR-830 Multi-pin Transparent vacuum pipe makes the microphone covert and comfortable to wear. Dual-core structure with microphone, PTT button and removable vacuum pipe facilitates a covert communication in complex circumstances. The eco-friendly PU wire is made of tensile vectran fiber, which is sturdy and durable. Proper soft ear hanger can be chosen to offer best wearing without hearing affected by surroundings. It is commonly used by patrolman, detective, security guard, escort and other security professionals.