• Operation is based on amplifier IC TDA7492P
• Bluetooth connection implemented with CSR8635 module
• Operating voltage: 8-25VDC with DC21 connector (e.g. an old laptop power supply works)
• Realistic output power approx. 25W
• Suitable power range can be selected with a DIP switch
• Speaker output impedance: 4-16ohm (8ohm recommended)
• Speaker connections via screw terminal (L+R)
• Buttons: PLAY, BACK, NEXT, VOL+, VOL-
• PCB color may vary between batches

Applications, e.g.:

• DIY Bluetooth speaker
• Discreet modernization of old audio equipment