PCB speaker bluetooth, as an audio device integrated with Bluetooth technology and PCB (printed circuit board) technology, has many unique features and advantages. Here are the detailed answers about PCB Bluetooth speaker.

Technical features
1.Bluetooth technology:PCB Bluetooth speaker built-in Bluetooth chip, Bluetooth connection instead of the traditional wire connection, easy to connect with mobile phones, tablet PCs, laptops and other Bluetooth playback devices to achieve wireless audio transmission.
2.PCB technology: PCB is used as the core circuit board to realise the processing and transmission of audio signals. PCB is well-designed to ensure the stability and clarity of audio signals.

Advantage
1. Widely used: Bluetooth technology specifications are globally unified, supporting a variety of devices to connect, such as mobile phones, PDAs, laptops, etc. PCB Bluetooth speakers are highly popular among users because of their wide compatibility.
2. Easy to operate: Bluetooth technology is instantaneous, no fixed infrastructure, easy to install and set up. Users only need to simply complete the pairing can be put into use, the operation threshold is low.
3. Fast transmission speed: Compared with other methods such as infrared, Bluetooth transmission protocol has obvious advantages in speed. Bluetooth 4.0 theoretical maximum speed of 24Mbps, to ensure higher sound quality, carrying a higher bit rate of music.
4. Moderate transmission distance: Bluetooth transmission distance of a stream within 10 metres, suitable for home environments. In addition, Bluetooth signals can be transmitted through walls, to meet the needs of users in different indoor locations.

Design key points
1. Sampling Bluetooth module: PCB Bluetooth speaker using high-performance Bluetooth module, such as RDA4851s, etc., to support dual-channel Bluetooth audio communication, to ensure the stability and clarity of the audio signal.
2. Amplifier chip: the use of high-quality amplifier chips, such as 8002A, etc., to provide sufficient power to drive the speaker to ensure sound quality performance.
3. Audio display: Some PCB Bluetooth speakers also have audio display function, through the LED lights or other display devices to show the audio spectrum and other information to enhance the user experience.
4.PCB design: PCB is well-designed with reasonable layout to ensure the stability and reliability of the circuit. At the same time, the PCB board will be considered in the design of bending and other structures to facilitate user placement and use.

All in all, PCB bluetooth speakers have become one of the most popular audio devices in the market by virtue of their advanced technical features, wide range of applications, easy operation and good sound quality performance.

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