Features: 1. Use high impact ABS and Polycarbonate plastic housings for ruggedness. 2. Use High quality speaker and noise-cancelling mic provide loud and clear sound. 3. Environmental PU cable reinforced with Coiled Cord. 4. Microphone with Sturdy plastic 360 rotating clip. The microphone can be clipped on the collar or shoulder position; 5. Microphone with 3.5mm Audio jack. 6. Undergone comprehensive testing including high altitude performance, vibration, mechanical shock, thermal cycling, external short circuit and overcharge test simulations. 7. Waterproof grade: IP54 (rain / dust) Description: Name: SM18N2 Speaker Mic Microphone for HYT Hytera Radio PD700 PD700G PD780 Model: SM18N2 Microphone: Impedance 2.2Ω, Sensitivity -36dB + / - 2dB, Frequency response: 20Hz-1.6KHz Speaker: Sensitivity: 94dB ± 3dB Impedance: 8Ω ± 15% Audio: 2W Microphone: Frequency: 20-16000HZ Sensitivity: -40dB ± 2dB Impedance: 2.2K Ω Compatible Radios: for Hytera HYT PD700 PD700G PD702 PD702G PD705 PD705G PD752 PD752G PD755 PD755G PD780 PD780G PD780GM PD782 PD782G PD785 PD785G PD788 PD982 PT580H UL913 Notice: If your walkie-talkie type is not in the list above, please see my other items or email us your model number, then, we will help you find one that suits for you. Packing list: 1 x SM18N2 Speaker Mic Microphone