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75" gesture erase android tablet interactive whiteboard 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

In order to improve the quality of our induction cooker control board, electronic circuit manufacturers, compressor inverter control board, we implement the veto system of product quality in our company, and enrich and improve the quality inspection team. We have a complete after-sales system to provide customers with pre-sales, in-sales and after-sales services. In the future, we will actively explore the international market under the existing domestic and international markets, and take reputation as the driving force of our production. We take "being a socially respected person and building a socially respected enterprise" as our core value. We have a group of experienced technical personnel who are good at research and innovation, and can provide customers with better products.

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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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Our company shows the business integrity and social responsibility of the enterprise with the continuous improvement of 75" gesture erase android tablet interactive whiteboard smart board quality and considerate pre-sale, in-sales and after-sales services. Our company has established a scientific and comprehensive enterprise management and quality management system, and set strict production standards to monitor each production process. We adhere to the principle of professional and practical product design, pursue excellence, keep forging ahead, and achieve the goal of win-win with customers.

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