Motorola intercom microphone dual M head with 3.5mm headphone jack Description:This is a convenient and practical speaker microphone. Crafted from environmental PU, its cable is high durability and anti wear. It has a 3.5mm headphone Jack with a dust plug, effectively anti dust and make sure the sound quality won't be disturbed. With its steel belt clip, you can easily fix it on your shoulder or collar. Free your hands! It is rainproof and compatible for talkie products. Features:1. It is suitable for people who are in certain places and have relatively frequent conversations. You can communicate with others even when there is no internet and need on worries about telephone charges.2. 3.5mm Headphone Jack: It is compatible with most of earphones, very convenient and the dust plug effectively prevents the dust from getting into the jack,3. Steel Belt Clip: It is solid, practical and easy to carry with. you can easily fix it on your shoulder or collar.4. Environmental PU with premium material: Its cable is high durability and anti wear, with good tensile strength.5. Wild Compatibility: It is great fit for talkie products. Specifications:Material: Plastic, PUColor: BlackConnectors: M HeaderVoice Frequency: 2WSensitivity: -40dB±2dBImpedance: 2.2kΩProof Grade: IP543.5mm Headphone Jack: YesCompatible model: for GP88S, GP2000, GP88, GP3688, etc.Size: 78 * 59 * 41mm / 3.1 * 2.3 * 1.6inchWeight: Approx. 135g Package Include:1 x Hand Microphone