brand：Study of cable

JF-307 wireless microphone features:

1, small launch:
Pen type transmitter is the product of the same size in the market, the lightest weight of the product, the overall weight of only 20 grams. Users can not directly on the clothes, but also handheld, without any use of clothing requirements, long time use and no sense of weight. The utility model is convenient for users to carry, and is clean, sanitary and easy to manage.
2, green environmental protection:
The use of energy-saving technology ultra-low emission power, electromagnetic radiation is only ordinary mobile phone 1/90, worthy of the name". Built in lithium battery and charging module, with low voltage alarm, charging instructions, automatic shutdown after charging and other functions. A full time of more than 10 hours to meet the requirements of all day use.
3, strong anti-interference:
With professional ID code encryption transmission technology, ID coding up to one million units, each product is only a unique ID code. Use the same equipment in the same place without interference. The user does not speak, or in a state of weak signal, receiver with automatic mute function.
4 powerful host:
Automatic detection of U disk / SD card inserted and automatically play; fully compatible with the USB1.1/2.0U disk, USB HOST playback mode; support CARD READER, compatible with SD/MMC card; MP3:MPEG1, 2, 2.5, Layer3, bit rate: 16Kbps-320Kbps;
JF-307 wireless microphone product description diagram:

1 the host will be placed in the appropriate location, open the power switch, the volume will be small. (power indicator light red)
At a distance of 2 small receive within 5 meters of the first hold the pen transmitter button for three seconds, and the receiving host of frequency (frequency of successful pen type transmitter and receiving light from the flash into slow flash).
3 of success frequency, will be transferred to the appropriate volume of the receiving host, the user can launch a pen type loudspeaker, pen type transmitter and receiving small effective transmission distance of 10-15 meters, pen emitting red light slow flash when the power is insufficient, should be timely charging, charging clip of the red light, red light after full charge dim.
The other pen type wireless microphone:

Jing Feng JF-306 pen small receiving wireless microphone

Large receiving wireless amplifier Jingfeng JF-307 pen