QFX M-310 Wireless Microphone and Receiver

How to Operate

1. Unscrew the housing, insert a Size AA battery with the correct polarity, and screw the housing back on. Insert the telescopic antenna and set the switch to the ON position. The pilot lamp will illuminate. Insert another Size AA battery into the receiver with the correct polarity and set the receiver's switch to the ON position. The pilot lamp indicates a good condition. Plug the receiver into the microphone input socket of the amplifier.
2. To temporarily stop the microphone from picking up sound during use, set the switch to the middle (MIC) position. The lamp will remain on, but the microphone will not transmit sound.
3. To use as a wired microphone: Remove the battery from the microphone, connect the wire to the microphone, and set the switch to the MIC position.

Attention

1. If sound quality and volume are abnormal, or the receiving distance is shortened, replace the batteries in both the wireless microphone and receiver. For normal operation, you may need to carefully adjust the receiver's frequency with a screwdriver.
2. If the microphone will not be used for an extended period, remove the batteries to prevent deterioration and component damage.
3. When using two wireless microphones simultaneously, ensure they have different colored indicator lamps (e.g., one red and one green). Do not use two microphones with the same colored lamp.

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