2.4G wireless voice teaching system, wireless microphone, laser pointer, pointer, Zhuhai Jing Feng Electronic Technology Co. Ltd.

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Home ∷ Product Center ∷ 2.4G wireless teaching voice system ∷ 2.4G wireless microphone ∷ JF-311 2.4g teaching wireless microphone

Product name：JF-311 2.4g teaching wireless microphone

Relevant parameters:

Emitter length * width * height: 57*24*27mm
Receiver length * width * height: 60*36*17mm
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: 6-8H
Detailed description

Detailed description

Brand:JFZH

A) Features ofThis Product
Reasonable structure, beautiful appearance,environmental-friendly, compact and stable

B)Directions for Product Use

1. the small receiver connected to the computer (or active speaker) microphone interface, open the power switch receiver, receiver red and blue lights flashing.
2. at a distance of three meters within the scope of the receiver, the transmitter power switch, automatic frequency of transmitter and receiver, the frequency after the success of the microphone is coupled to the transmitter, the volume to the appropriate location.
3. the normal use of the state, the microphone sound becomes smaller, or broken frequency please check
whether the lack of electricity, such as the lack of electricity charge and then continue to use.