620-681MHz UHF Wireless microphone for speech conference traning
System specifications:
Receiver:
Frequency Range:620-681MHz
Receiver Way:super heterodyne twice frequency conversion
IR-FRE:First:110MHz,Second:10.7MHz
Mute adjustment: 0-40dB
Stray radiation:>80dB
Antenna Access: Un-balanced:+4dB(1.25V)/5KΩ
Balanced: +10dB(2.5V)/600Ω
Power supply mode: DC11-16V(Rated 12V),400Ma input.
4Transmitter:
Frequency range: 620-681MHz
Modulation Mode: FM
Frequency Bandwidth: 60MHz
Frequency Quantity: 200 available
Frequency Stability: ±0.005%
Harmonic radiation: >110dB
Max Deviation: ±45KHz
S/N Ratio Response: >105dB
T. H.D distortion: <0.5%
Output Power: 5~10M
FAQ:
1. Who are we?
We are based in CangzhouHebei, China, start from 2013.Our Chief engineer has more than 14 years on designing and developing educational equipment. He is one of the first engineers start to design charging cabinet/charging cart in China mainland.There are total about 101-200 people in our company.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment.
3.What can you buy from us?
tablet Charging cabinet/ cart/ trollet/station, digital podium, locker for office and schools
4. Why should you buy from us not from other suppliers?
over 14 years OEM metal processing experience 15 countries export records. We use 1.2-1.5mm galvanized steel sheet for the body. Many charging cabinets are cold rolled steel in the market, if any damaged on the surface, the power coated painting will peel off and get rusty when touching the water or in humid weather, but galvanized steel sheet will not. And we use good quality electronic components, which pass CE FCC, ROSH, and power supply pass UL.
5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,Express Delivery;
Accepted Payment Currency:USD,EUR,AUD,CNY;
Accepted Payment Type: T/T,PayPal,Western Union;
Language Spoken:English,Chinese
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