The Bluetooth audio module is a hardware device that integrates Bluetooth technology, mainly used to achieve wireless transmission and processing of audio signals. It connects audio devices (such as mobile phones, computers, speakers, etc.) to receiving ends (such as headphones, speakers, car systems, etc.) through the Bluetooth protocol to support wireless audio playback, control, and sound quality optimization. The following is a detailed description of its core features and functions:
The following are several recommended Bluetooth audio modules

Feiyitong FSCBT1006A

Features:
Bluetooth 5.0 dual-mode solution, supporting simultaneous transmission of data and audio.
Applicable to Bluetooth speakers with TWS function.
Applicable scenarios:
Bluetooth speakers, car multimedia and other devices that require audio and data transmission.

Here are a few recommended Bluetooth audio modules

Feiyitong FSCBT1006A

Features:
Bluetooth 5.0 dual-mode solution, supporting simultaneous transmission of data and audio.
Applicable to Bluetooth speakers with TWS function.
Applicable scenarios:
Bluetooth speakers, car multimedia and other devices that require audio and data transmission.

Yamazawa RBT53

Features:
Support Bluetooth 5.3, backward compatible with multiple versions, stable connection.
Support AAC/SBC high-definition audio decoding, providing CD-level sound quality.
Small and exquisite, plug and play, compatible with multiple Windows systems.
Applicable scenarios:
Bluetooth audio expansion of computers, TVs and other devices to enhance the audio experience.

Shengwei EBT5003G

Features:
Equipped with Bluetooth 5.3 chip, supports dual mode, and has a transmission rate of up to 2MB/s.
Support SBC high-definition audio decoding, providing high-fidelity sound quality.
Strong compatibility, plug and play, no driver installation required.
Applicable scenarios:
Connect Bluetooth headphones and speakers to improve the wireless connection performance of audio devices.

Ebyte EWM104BT57U

Features:
USB to Bluetooth converter, convenient for wireless connection between devices.
Supports multiple Bluetooth protocols and good compatibility.
Applicable scenarios:
Bluetooth function expansion of computers, mobile phones and other devices to achieve wireless audio transmission.

Ebyte E104BT series

Features:
Provides classic Bluetooth, low-power Bluetooth, dual-mode Bluetooth and other modules.
Applicable to IoT application scenarios such as smart home, smart door locks, industrial IoT, etc.
Applicable scenarios:
Bluetooth audio modules with different functions need to be selected according to specific needs and are widely used in various IoT devices.

Xisheng AVA2 Pro

Features:
Equipped with Bluetooth 5.2 technology, stable connection and low latency.
Supports 20 levels of ambient sound adjustment and active noise reduction function to improve the sound quality experience.
Single battery life is 6 hours, and the total battery life is 20 hours with the charging box.
Applicable scenarios:
Bluetooth headsets are suitable for daily commuting, sports and games.
The above modules have their own characteristics, and you can choose the appropriate Bluetooth audio module according to your specific needs.