CSR8645 Bluetooth module is an intelligent wireless audio data transmission product developed by a leading company, offering a cost-effective stereo wireless transmission solution. The module features the CSR BC8 chip, delivering high-quality sound performance and broad compatibility with optimized overall functionality. The CSR8645 Bluetooth module adopts a driver-free design, allowing customers to easily integrate it into applications and quickly achieve wireless music transmission for an enhanced wireless audio experience. Application areas: This module is designed for short-range audio transmission and can be easily connected to Bluetooth-enabled digital devices such as notebook computers, mobile phones, and PDAs. Ideal for use in Bluetooth headsets and wireless audio applications. Key Features: 1. Bluetooth version 4.0 2. HFP version 1.6 3. AVRCP version 1.4 4. Supports multi-point connection, enabling simultaneous pairing with two devices 5. Firmware version 6.0 for enhanced processing performance 6. Supports voice prompts 7. Supports basic voice recognition 8. Fast charging capability 9. Compatible with iOS battery level indication 10. Supports AAC-LC and APT-X audio codecs 11. Supports USB sound card functionality with limited input Color: As Shown Material: Plastic + Metal Package Contents: 1 set x Bluetooth Audio Module Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting effects and display settings may cause slight variations in the color shown in the image compared to the actual product. Measurement error allowance is +/- 1-3 cm.