brand：Study of cable

JF-304 teaching microphone features：

1, small size
Clip shape transmitter using Bluetooth headset microphone shape, is currently on the market similar products in the smallest volume, the lightest weight of the product, the overall weight of the product is only 20 grams. The user can be directly clamped on the clothes, but also can be hung in front of the sling, the use of any 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.
JF-304 teaching microphone product use instructions schematic:

1 will receive a small USB port to receive a computer USB interface, the other end of the audio cable connected to the computer audio input port, the wiring is correct after receiving a small indicator light.
2 microphone receiving clip transmitter microphone jack, then press the middle button clip transmitter at a distance of receiving small orange three seconds within 3 meters, and the frequency of successful small receiver (on the frequency of the transmitter and receiver indicator small clip by red and blue lights flash into blue light slow flash).
3 of success frequency, the user can launch with a clip loudspeaker, clip transmitter and small receiving effective transmission distance of 10-15 meters, the clip emitting red light slow flash when the power is low, should be timely charging, charging clip of the red light, red light dimmed after full charge.

Eastshine Lavalier wireless microphone to other models:

Jing Feng JF-308 wireless microphone Teaching

Jing Feng JF-303 wireless microphone Teaching

Jing Feng JF-302 wireless microphone Teaching