4 Pack Vacuum Cleaner HEPA Filters for Cyclonic Series RO3753EA RO3731EA RO3786EA 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.<br> 2. High-quality and clear audio: The SM18N2 walkie-talkie uses a high-quality speaker and noise-cancelling microphone that provides loud and clear audio.<br> 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.<br> 4. Back clip and 3.5mm audio 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 audio jack for easy connectivity.<br> 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.<br> Model Number:PTT Microphone<br> Name:Speaker Microphone<br> Model:SM18N2<br> Microphone:Impedance 2.2ohm<br> Sensitivity:-36dB±2dB<br> Frequency response:20Hz-1.6KHz<br> Sensitivity:94dB ± 3dB<br> Impedance:8ohm±15%<br> Audio:2W<br> Microphone:Frequency:20-16000Hz<br> Sensitivity:-40dB ± 2dB<br> Impedance:2.2Kohm<br> 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<br> Colour:Black<br> Material:Plastic<br> Package Contents:<br> 1 * PTT Handheld Mic<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.