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Digital Wireless MIC Speaker



Are you still worrying about how to provide the better sound environment to the future classroom?
Never hesitate, CH-20 Hi-Fi speaker can provide you with the best proposal.
Center / Ceiling is the best speaker position to create the uniform sound level in the classroom.
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Full range, high sound quality. Music and vocals can express reality well.

The adoption of Class D digital power amplifier and 20W high-efficiency speaker design makes the output sensitivity up to 92dB.


The speaker built-in echo tube design presents stereo sound in bass to make people immersed in the high quality surround atmosphere and endless auditory feast.

High/low pitch optimization design, enhancing the response frequency in 50Hz and 20KHz range, regardless of high/low pitch sound quality is clearly distinguishable allowing teachers and students to interact under the pleasant sound.

Patented design, unique two parts hook method, convenient and easy installation.

The speakers installed at the front of the classroom are in a dilemma that they can be heard clearly at front but blurred in the back. The unique patented installation design of the CH-20 is easy to install in the center ceiling of the classroom creating a surround sound effect allowing the clearest and best sound quality in all space.

CH-20 Hi-Fi speaker allows teaching and presentations to clear sound quality. It can be used with flat panel displays or projectors to create the smart classroom.

Speaker spec.
Amplifier Class D
Wattage Output 20W Stereo
Speaker spec. 2.75" 5W/8Ω x2 full rang (high performance speaker)
SPL(Sound Presure Level) 92sB/W
Frequency Response 50Hz ~20kHz
Dimension 254.1 x 250 x 90mm
Weight 1.5Kg
Power Supply Switching Power Supply DC12V/2A
Input Audio in x1, DC in x1
Audio Auto Off 60sec
Other Spec.
Safety SRRC, CE, FCC
Accessories Power cord x1, Power adapter x1, 3.5mm audio cable x1, Sponges