Retevis 2 Pin Acoustic Tube Headset Walkie Talkie Headsets with Mic Compatible Kenwood Radios Baofeng UV-5R BF-888S H-777 RT21 RT22 H-777S 2 Way Radio (5 Pack) No-nonsense Hands Free Private Communications; Covert air acoustic transparent and durable tube provides clearly transmit voice in extreme noise situations; with push to talk button; you neednt lift radios for smooth talks Superior Sound Quality; with built-in line microphone; Super voice sensitive detection make you talk successfully even in low voice Suitable Length of Wire; Length of the cable (Plug to PTT) 105cm; Length of the cable (Plug to Earpiece)100cm; Total lengh 205cm Stainless Steel Clip; you'll clip it to your collar or anywhere for convenient usage; ideal for some surveillance purposes and security at airports; casinos; crowd control at conventions etc Worry Free Warranty; We offer 60 days warranty and 30 days no reason to return service with our friendly and profession customer service team