Professional Dual Handheld VHF Wireless Microphone System Cordless Karaoke Microphone Speaker with Battery for KTV Party
$51.49 $66.30
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Features:

Using vhf 200-280 Mhz band to avert interferencing frequency.
Using multilevel high frequency and mid frequency narrowband filter, so as to dispel anypossible interferencing signals.
The wireless microphone use hidden antenna look good and are useful.
There is a volt indicating circuit in the the microphone it can tell you if it is necessary tochange the battery.
Specially designed circuit switch is on the phone. it is for clearing up waves of miscella-neous siona.
All use quartz crystal oscillating circuits so the frequency is very steady.
This kind professional wirele-ss microphone adopt a series of measures to improve its functions advance frequency.
Using multilevel high frequency and mid frequency narrowband filter, mulriple no-e detect and control.
Designing it special functions(tone key locked identity )to a-void interference from outside.
Effective, built-in spherical wind.
 
Specification:

Carrier frequency:VHF-280MHZ
Frequency stabilization:less than±30ppm
Dynamic range:more than 90db
Total harmonic distortion:less than 0. 5%
Frequency response:40hz-15khz ±3dB
Audio output level separate type:0--+400mv mix tune 0--200mv
Effective distance received (empty place): 40-50 meters at the farthest
 
Fixed receiver
Power supply:AC110-220v45-60hz
Consume power:4watt
Signal/noie power:more than 90db
Signal/nose ratio:more than 80db
Image spurious reiection:more than 80db
Receivering sensitvity:less than 10dbuv(sinad=30db)
De-emphasis:50us
 
Handing microphone
Transmitter power:30mw
Modulaton type:FM,F3F
Max deviation:?25KHz
Spurious emission:more than 40dB(with carrier)
Battery voltage:9v battery
Continuum using:6 hours(compare with gp 1604s 9v battery)
Noise contror:perfectness circuit for eliminating noises
 
Package included:

2 x Microphone
1 x Receiver
1 x Audio Cable
2 x Battery
1 x Instruction Manual

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Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases. To complete your return, we require a receipt or proof of purchase.
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