Teaching a new generation of digital wireless loudspeaker system with the characteristics:
1. Shortwave frequency hopping two-way 2.4G (Global pass band), the radio automatically scans and address of the code matching, you can easily implement any match, they go with where, truly, "one teacher one wheat"
2. One of a microphone, clean and sanitary
3. Any match, no need for cumbersome stocking and registration, 1000 the same school (different class) simultaneously without crosstalk
4. One of a microphone, equipment management more convenient
5. Energy saving conservation, green products, not frequently replace the battery, no pollution
6. Compact and lightweight, suitable for portable
7. Using USB interface, rechargeable lithium battery, charging time can be 8 hours


Comprehensive performance
1. Modulation: Digital Frequency Modulated
2. Set Frequency: 2.4GHz
3. Demodulation method: GFSK digital modulation
4. Frequency Point:> 2000
5. Bit Rate: 16bit ± 32kHz
6. Audio Response: 20Hz-20kHz
7. Receiving sensitivity:-85dBm, 45dB of adjacent channel suppression, 30dB image rejection
8. Total Harmonic Distortion: <0.5%
9. SNR:> 95dB
10. Dynamic range: 90dB
11. Use range:> 150m

 Transmitter Technical Specifications

Frequency range	2.400GHz-2.483GHz
Channel space	6MHz
Transmit power	+18 DBm
Microphone input	20mV
Operating Current	150mA
Frequency response	20Hz-20KHz
SNR	95dB
Microphone audio input jack	3.5mm
Battery	3.7V polymer battery (1200Mah)
Size	70 * 40 * 20 (mm)
Weight	50g
Antenna	Built-in
Firing range	150M
Signal separation	80dB (typical)
Distortion	<0.1%

 Receiver Technical Specifications

Frequency range	2.400GHz-2.483GHz
Receiver Sensitivity	-90dB
Operating Current	100mA
Frequency response	20Hz-20KHz
SNR	95dB
Antenna	External
Firing range	150M
Signal separation	80dB (typical)
Distortion	<0.1%
Peak power	300Wx2
EEQ adjustment	With EQ adjustment
Enter	4 mic inputs, 2 stereo input group
Export	Group 1 stereo output, speaker output 1 group
Mixer Function	Mixer with 4-way function
Standard Speaker	2 frequency, 2 unit, 6.5 "x1 +3" x1