KCX_BT002 is a multi-purpose Bluetooth audio module that integrates Bluetooth audio and Bluetooth calling functionality. Supports pairing with smartphones and audio players on the market, and enables voice prompts for incoming calls, answering calls, hanging up, and redialing. Easily integrate this decoder board into your device to upgrade standard wired audio systems to wireless Bluetooth audio. Typical applications: - Convert wired home speakers into Bluetooth speakers - Speaker repair and upgrades - Car audio system modifications - Upgrading computer speakers Features and advantages: 1. Durable design with reliable performance 2. Stable Bluetooth transmission using advanced technology 3. Clear LED status indicators 4. Voice prompts for call notifications and incoming call information 5. External buttons do not require voltage divider resistors, simplifying integration 6. Wireless transmission range up to 10 meters Product dimensions: 32 x 16.2mm Color: Green Material: PCB Package contents: 1 x Bluetooth audio receiver module 1 x connector cable Note: The package includes only the items listed above. Other accessories are not included. Due to lighting effects and monitor settings, the actual color of the item may vary slightly from images. Measurement tolerances may vary by +/- 1-3cm.