KCX BT003 Bluetooth 4.2 Stereo Audio Receiver Module

Description

The KCX BT003 Bluetooth 4.2 Stereo Audio Receiver Module is engineered to bridge wired audio systems with modern Bluetooth sources. It integrates a complete USB audio interface and Bluetooth radio, functioning as an external sound card that outputs high-quality stereo audio via its 3.5mm line-out jack. The module’s core is built on Bluetooth 4.2 technology, operating in the 2.4GHz ISM band (2400-2485MHz) with a receiving sensitivity of -85dBm to ensure stable, low-latency audio links even in moderately noisy RF environments.

Designed for seamless integration, the module draws minimal power (35mA) from a 3.3-5VDC supply, making it suitable for both portable and mains-powered applications. Its compact form factor and simple interface—requiring only power, ground, and audio output connections—allow for straightforward embedding into DIY projects, commercial audio products, or legacy audio equipment upgrades. The onboard serial port provides advanced users with the capability to customize pairing behavior and device parameters via AT commands.