JF-305 teaching wireless microphone

Product name:JF-305 teaching wireless microphone

Relevant parameters:

Emitter length * width * height: 85*42*9.5mm
Receiver length * width * height:74*26*14mm
Directivity: capacitive directivity
Sensitivity: -44 (dB)
Frequency range: 40-16K (Hz)
Impedance: 680 ohm
Carrier frequency: 2400-2482Mhz
Modulation: GFSK
RF power: 0dBm
Maximum wireless transmission distance: 10-15 meters
Working voltage: polymer lithium battery 3.7V

Continuous working time:8-12H

Detailed description


Brand:JFZH


A) Features ofThis Product

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.


B)Directions for Product Use

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.

Address: 3rd Floor,100 Huawei Road,Zhuhai
 rights reserved: Zhuhai Jing Feng Electronics Co., Ltd.