Acoustic Tube Earpiece for Two Way Radio (EM-4222)

1, Transparent acoustic tube style surveillance earphone received superior sound even in noisy environment, it's also discreet and portable. 2, Changeable acoustic tube assembly for hygiene and multiple users 3, Clip can secure to user's lapel to meet their need 4, All units feature heavy grade industrial jacketed cables and excellent strain relief for maximum life 5, Designed for surveillance, security, public safety, etc 6, Compatiable for Motorola, Kenood, HYT, Vertex, Icom...Two way radios Speaker Specification TypeTransducer Moving coil dynamic speakerImpedance90Ω±15% @1KHZSensitivity110±3dB @1KHZResonance freq(F0) 400HZ±20%Frequency respondF0~5KHzRated input power500mWMaximum input power800mWMicrophone Specification Sensitivity Range-34 ± 2dB RL=2.2K ΩVs=3.0V(DC) 1KHz 0dB=1V/PaImpedance Max2.2KΩ 1kHz (RL=2.2KΩ)Frequency20-20KHzCurrent Consumption Max0.5uA RL=2.2KΩ Vs=3.0V(DC)Operation Voltage Range1.0V-10V (DC)Max Sound pressure Level115dB S.P.L1.PACKAGE:Natural carton package or OEM service. 2.LEADTIME:Whithin one week for samples, order depand on the quantity. 3.SHIPPING METHOD:DHL,EMS,UPS etc as you want 4.PAYMENT: T/T, Western Union, paypal in small amount. Our prices DO NOT include any customs duty or tax. Please be responsible for custom tax if your local custom charge some custom tax. 5.RETURN and WARRANTY:  100% QC inspection before shipment. Accept exchange within 7 working days after you received. Pls contact us before you return. All of our products have 1 year warranty. 6.MINIMUM ORDER: Sample order and trial order are welcome. /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1