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65 Inch Android 8.0 4K LED Display Wireless Screen Sharing Interactive Smart Board

65 Inch Android 8.0 4K LED Display Wireless Screen Sharing Interactive Smart Board

Tecoo is an electronics manufacturing service provider offering turnkey PCB assembly services. We manufacture high-quality audio control boards with high fidelity, low noise and beautiful appearance. Support OEM and customized service.

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Product Introduction

Our Company is honest and pragmatic, develops steadily, and is committed to refrigerator electronic control board, air conditioner board, universal Refrigerator control board and operation with a high sense of social responsibility Our company's development goals are in harmony with the interests of society, shareholders, affiliated companies and all employees. The company's products have now passed the quality system certification, and have a high market share and customer satisfaction in the domestic and foreign markets. We always believe that corporate culture is an important part of constructing the core competitiveness of an enterprise and is the driving force for its sustainable development. Our new, open and international management enables the performance and quality of our products to be continuously improved, and we strive to provide each customer with quality solutions and personalized services.

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Advantages of audio control board


1. The directivity is very good.

2, the sound attenuation is small. With traditional speakers, when you get too close, you will find the sound is loud, and when you are a little farther away, you will feel that the sound is much smaller.

3. The fidelity of the sound is high. Generally, the traditional horn is in the shape of a sound cone. When it vibrates and emits sound, it tends to concentrate the sound in the throat, compress it, and then spread it out. The sound people hear is the sound that has been compressed and deformed. .

4. The shape is ultra-thin and does not take up space. Due to the special structure of the flat-panel speakers, the formed speakers can be placed in any position, unlike traditional speakers, the effect of hearing is also very different due to the different placement positions.

Technical indicators


Its technical indicators mainly include six items: frequency response, signal-to-noise ratio, dynamic range, distortion, transient response, stereo separation, and stereo balance.

1. Frequency response: The so-called frequency response refers to the frequency range of the audio equipment and the relationship between the amplitude of the sound wave and the frequency.

2. Signal-to-noise ratio: The so-called signal-to-noise ratio refers to the ratio of the playback sound of the audio system to the new noise generated by the entire system. The noise mainly includes thermal noise, humming noise, mechanical noise and so on.

3. Dynamic range: Dynamic range refers to the logarithmic value of the ratio of the maximum undistorted output power of the audio system to the system noise output power when it is static, in decibels (dB).

4. Distortion: Distortion means that after the audio system replays the audio signal, some parts of the original audio signal (waveform, frequency, etc.) have changed.

5. Stereo balance: Stereo balance indicates the difference between the gain of the left and right channels in the stereo playback system. If the imbalance is too large, the sound image positioning of the reproduced stereo will be offset.

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The company implements advanced management concepts, introduces advanced technology and talents, and manufactures high-quality 65 Inch Android 8.0 4K LED Display Wireless Screen Sharing Interactive Smart Board. We hope to create long-term value with every partner, return considerable profit to every shareholder, and make every employee share success and happiness. We take customer satisfaction as our policy, systematically controlling product quality.

Hot Tags: audio control board, China, factory, customized, professional, lcd monitor controller board, dual power supply board, contract PCB assembly supplier, assembly contract manufacturing, ems pcba, electronic prototype board

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