1. High-impact shell: The SM18N2 speaker microphone is made of high-impact ABS and polycarbonate plastic, providing superior durability. It can withstand rough conditions and last for a long time. 2. High-quality and clear o: The SM18N2 walkie-talkie uses a high-quality speaker and noise-cancelling microphone that provides loud and clear o. 3. Eco-friendly PU cable and IP54 waterproof: The SM18N2 radio mic features an eco-friendly PU cable reinforced with coiled wire, making it highly durable. It has a waterproof rating of IP54, making it resistant to rain and dust. 4. Back clip and 3.5mm o jack: The SM18N2 PTT microphone has a sturdy plastic 360-degree rotating clip that allows for easy positioning on clothing or shoulder straps. It features a 3.5mm o jack for easy connectivity. 5. Withstood multiple tests: The SM18N2 two-way radio microphone has undergone high-altitude performance, vibration, mechanical shock, thermal cycling, external short circuit, and overcharge testing simulations to ensure reliability in harsh environments. Model Number: PTT Microphone Name: Speaker Microphone Model: SM18N2 Microphone Impedance: 2.2 ohm Microphone Sensitivity: -36dB ±2dB Frequency Response: 20Hz–1.6kHz Speaker Sensitivity: 94dB ±3dB Speaker Impedance: 8 ohm ±15% Output Power: 2W Microphone Frequency Range: 20–16,000Hz Microphone Sensitivity: -40dB ±2dB Microphone Impedance: 2.2k ohm Compatible Radios: Suitable for Hytera HYT PD700, PD700G, PD702, PD702G, PD705, PD705G, PD752, PD752G, PD755, PD755G, PD780, PD780G, PD780GM, PD782, PD782G, PD785, PD785G, PD788, PD982, PT580H, UL 913 Color: Black Material: Plastic Package Contents: 1 x PTT Handheld Mic Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.