KEYBLU 2-Wire Walkie Talkie Earpiece/Headset PTT Mic 2 pin Surveillance Kit Mic Acoustic Tube Earpiece for Motorola CP200 CLS1110 CLS1413 CLS1450 Dual line structure to enhance the product accessibility and concealment. Transparent acoustic tube transmit sound in high quality and effectively protect the eardrum from sound wave impact. Lapel PTT with high quality microphone, easy and convenient to wear and clear sound performance without distortion. Strong PU cable with tensile strength up to 5 KG, compatible for Motorola CP200 GP300 PR400 etc. This 2 way radio earpiece compatible with leading radio headset brands Motorola. Don't work for Kenwood, Hytera, Puxing, Wouxun, Baofeng Radio.