Functions and Features:

=====Amplifier:

1.1 channel RCA audio input,1 channel 3.5 jack audio input, 2 channel 6.35 microphone input, support with 6.8v power supply, can connect the conference microphone manufactured by our company, and 1 channel 3.5 jack REC recording signal output.

2.Total volume control, microphone volume control;

Taken the 3.Power 80W*2, requires 2 independent hi-fi amplifier, suitable for multimedia classrooms, ordinary classrooms and meeting rooms.;

4.Sensitivity :75 dB/1W/1M;

5. Frequency response: 20hz-20khz;Signal to noise ratio: 90 db;

6. Working temperature :-20~75 degrees;

7.SMD double-sided circuit board technology, stable performance, suitable for complex environment.

Air tight precision potentiometer for longer service life and less dust effect on line.

Turn 9. Built-in double relay soft-start circuit, switch machine no impact sound.

Play 10. Support 2 road cable campus radio function, campus radio strong plug function, campus radio without signal 5 seconds automatically switch to classroom multimedia amplification (optional).

11. The machine cabinet type installation structure facilitates the installation of standard 19U cabinet.

12. The panel has unique single knob function, and other functions are designed in the dark adjustment mode on the back of the power amplifier to prevent students from moving the equipment and protect the adjustment effect.

13. : MP3 player with USB port

====Wireless Microphone Parameters:

1. Operating frequency: 2400-2480mhz (2.4ghz), modulation method: GFSK

2. Support dynamic volume gain, which can effectively improve the pickup distance

3. Support automatic channel search;

Rette 4. Auto sleep function. When not in use, the transmitter is automatically closed.Extend battery life.

Auto mute function when no signal is input

6. The built-in laser pointer has the function of laser pointer and support PPT page turning function. The transmitter has the function of computer page turning function, and it can realize the computer page turning function with bluetooth receiver in the classroom.

7. Transmission range: more than 15 meters and data rate: 2M

8. The wireless microphone adopts bluetooth technology, and the transmitter and receiver must be able to automatically match the frequency arbitrarily, all universal;

9. The system adopts the close connection mechanism, which is no more than 5 meters in frequency range and prevents crosstalk between classrooms.Use the distance to ensure no noise, broken sound or dead Angle within 15 meters;

10. The emitter requires a rechargeable lithium battery, which can be used continuously for no less than 20 hours under full power;The charging interface adopts the universal USB interface, which is convenient to use.

11. Can be used in various ways, such as neck hanging, holding, collar clip, etc.

12. Clear sound quality, suitable for teaching.The built-in microphone can be used directly or externally. The microphone is highly sensitive and has automatic gain function to ensure that the sound pickup range is not less than 25CM.

13. The transmitter is small, portable and easy to carry, with 1000 sets of non-serial frequency used at the same time;

14.The transmitter is equipped with three modes of code selection buttons, such as volume adjustment buttons, 2.4G infrared and PPT, laser pointer keys, power switch keys, etc

15. The built-in LCD screen of the transmitter can display signal intensity, electric quantity, volume, audio mode, working channel, PPT state, etc.;

16. Integrated design of microphone receiver and amplifier.