High-impact shell: The SM18N2 speaker microphone is constructed with high-impact ABS and polycarbonate plastic, offering enhanced durability and long-lasting performance in demanding environments. High-quality and clear o: Equipped with a high-quality speaker and noise-cancelling microphone, the SM18N2 delivers loud and clear o transmission for reliable communication. Eco-friendly PU cable and IP54 rating: Features an eco-friendly PU cable reinforced with coiled wire for increased durability. Designed with an IP54 rating, providing protection against dust and water splashes. Back clip and 3.5mm o jack: Includes a sturdy 360-degree rotating clip for secure and flexible attachment to clothing or shoulder straps. Fitted with a 3.5mm o jack for straightforward device connectivity. Rigorously tested: The SM18N2 PTT microphone has been subjected to extensive testing, including vibration, mechanical shock, thermal cycling, and environmental simulations, ensuring dependable operation in harsh conditions. Model Number: SM18N2 Product Name: PTT Speaker Microphone Microphone Impedance: 2.2 ohm Microphone Sensitivity: -36dB ± 2dB Microphone Frequency Response: 20Hz - 1.6kHz Speaker Sensitivity: 94dB ± 3dB Speaker Impedance: 8 ohm ± 15% o Output: 2W Microphone Frequency Range: 20Hz - 16kHz Microphone Sensitivity: -40dB ± 2dB Microphone Impedance: 2.2 kohm Compatible Radios: 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 Microphone Note: Light reflection and display differences may cause slight variations in color between the product image and the actual item. Measurement tolerances may vary by ±1-3cm.