Here are some key features and functions of this module:

Bluetooth Version: The module typically uses Bluetooth 4.2 technology, which offers a stable and efficient wireless connection to compatible devices like smartphones, tablets, and computers.

Audio Decoding: It is capable of decoding various audio formats, including MP3 and lossless audio formats. This means it can receive and playback audio files in high-quality formats.

Wireless Audio Streaming: You can connect your Bluetooth-enabled source device (e.g., smartphone, laptop) to the module, and it will receive and play audio wirelessly from your source device to your sound system or speakers.

Audio Output: The module typically has audio output pins, such as a line-out or headphone jack, allowing you to connect it to external amplifiers, speakers, or headphones.

Microphone Input: It may have a microphone input, enabling you to use it for hands-free calling or voice commands if it supports such features.

Power Supply: The module typically requires a DC power supply within a specified voltage range (e.g., 5V to 12V) for operation.

LED Indicators: LED indicators may be present to show the module's status, such as Bluetooth pairing, power, and playback status.