FBI Style Cool In ear Headset Earphone Earpiece Talkabout Mini Radio Walkie 2 Pin Talkie Note: Not suitable for cell phone. "K" Plug, please get to know whether it is suitable for your device before ordering. Matching walkie-talkie type: Kenwood TH272G/372G,TK3130ProTalk Series,TK313Free Talk series, TK220/320/240/208/360/370…etc Fit for headphone: BF-5118、BF-5118A、BF-5180、BF6200、BF6800 TK-3107、TK-3207、TK-2107、TK-2207、TK-308、TK-208、TK-3118、TK-2118 TG-K4AT、TG-45AT、TG-46AT、TG-42AT、TG-3118、TG-6118 PX-777、VEV-3288S、LT-6600、LT-6288、LT-6100PLUS Air duct design principle, is to prevent electromagnetic radiation. Sound through the air duct, filter out the voice of the volume which is too strong and endanger human body health. So this one is no like other headphone wiht so loud sound. Long time wearing more comfortable, ear won't pain, and not easy to fall off. Material: plastic Color:Black Style: In-Ear Resistance: 30Ω Connectors: 3.5mm Sensitivity: 80dB With Microphone: No Line Length: 1.2m Frequency Response Range: 20-20000Hz Is wireless: Yes Power: 5mW Package include: 1 x Earphone