The CA-6928 is a miniature Bluetooth audio module that integrates wireless audio reception and stereo amplification. It supports Bluetooth 4.1 streaming and delivers clean 2-channel output, ideal for DIY speakers, embedded audio, and wireless upgrades.

Specifications

• Bluetooth Version: 4.1 (receiver only)
• Operating Voltage: 3.5 V–5 V DC
• Audio Input: Bluetooth wireless only (no AUX or USB input)
• Audio Output: 2-channel stereo (line-level or amplified)
• Output Power: ~15 mW stereo (line-level); compatible with external amplifiers
• Transmission Range: ≥ 10 m (open space)
• Supported Profiles: A2DP (audio streaming)
• Serial Port: Reserved UART pads for advanced configuration
• Dimensions: ~24 mm × 15 mm
• Mounting: Solderable pads or embedded integration
• Indicators:
  - Power LED
  - Bluetooth pairing LED
• Packaging: Bare module (no enclosure)

Features

• Wireless stereo audio streaming via Bluetooth 4.1
• Compact form factor for embedded and portable designs
• Compatible with Bluetooth speakers, headphones, and receivers
• Reserved UART port for advanced AT command configuration:
  - Device name, MAC address, connection status, disconnection
• Ideal for DIY wireless audio upgrades and embedded sound systems
• Common use cases:
  - Bluetooth audio bridges for TVs, PCs, and MP3 players
  - Wireless speaker modules for enclosures
  - STEM audio kits and classroom projects
  - Embedded audio streaming in custom electronics