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WIRELESS MICROPHONE AND RECEIVER

OPERATING INSTRUCTIONS

M-310

HOW DO YOU OPERATE IT?

1. Screw off the housing, insert a battery (Size AA) with the correct polarity and screw 

on the housing before inserting the telescopic antenna set the switch to the ON 

position. The pilot lamp is on at this time. Insert another battery (Size AA) into the 

receiver with the correct polarity. Set the switch of receiver to ON position. The pilot 

lamp is on that indicates a good condition. After that, plug the receiver into the input 

socket for microphone of amplifier, it is ready for operation.

2. When you temporary stop during singing and you don’t want the microphone to 

pick up any other sound, you may set the switch to the middle (MIC) position. Now, 

the lamp is on but your microphone won’t transmit any sound.

3. Use it as wired microphone:

Take out the battery from the microphone, connect the wire to the microphone and 

set the switch to MIC position.

ATTENTION:

1. If sound quality and volume are abnormal or receiving distance is shortened the 

batteries in the wireless microphone and receiver should be replaced. You can 

carefully trim the frequency of receiver with a screwdriver for normal operation.

2. If your microphone isn’t used for a long period, the battery should be taken out to 

avoid its deterioration and the damage of components.

3. If two wireless microphones are used at the same time, you must use them with 

one red and another green lamp. You can’t use them with the lamp of the same color.

SPECIFICATIONS

Microphone 

sensitivity 

  -72dB

Directivity    uni-directional

Frequency response 

 

 

100 to 10,000Hz

Output impedance 

 

 

600 ohm

Operating voltage  

 

 

3V or 1.5V DC

Effective distance  

 

 

15 to 30M

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