УКВ лацкан (заколка для галстука) конденсатор Беспроводной микрофон

This product we specially designed for classroom, teacher microphone. specialized high-classMIC. System Audio Frequency Response : 80 12500Hz Dynamic Range : ≥80dB System Distortion : ≤1% Signal-to-Noise Ratio : ≥80dB Operating Range : Appr.50M Operating Temperature Range : 5°C 40°C Carrier Frequency Range : 180 280MHz Transmitter(body pack) Frequency Stability : ±0.005% RF Output Power : ≤30mW Spurious Rejection : > 40dB Modulation Mode : FM Maximum Deviation Range : ±25KHz Microphone Mode : Dynamic Pre-Emphasis : 50μS Power Supply : 9V Bat. Current Consumption : ≤30mA Dimensions : 90×60×25mm Weight : Appr.65g(No include Bat.) Receiver Sensitivity : (S/N=30dB) <2μV Image Rejection :> 50dB De-Emphasis : 50μS Audio Output Impedance : 600Ω±10% Audio Output Level : 0 0.5V Power Supply : 3 V Current Consumption : 2W Dimensions : 205×140×40mm Due to theConfidentiality agreement with our customers, wewill not show any Brand name or Logo here.