HF69B Power Amplifier Board Speaker Modified 2x6W Compatible with Bluetooth
- When using a lithium , the charging interface can be charged with a 5 volt power supply or a charger to charge a single-cell lithium .
- Output power 6W+6W, two-channel stereo, good sound quality.
- Small standby heating, good-quality stereo, suitable for bluetooth speakers.
- Lithium can be connected, with charge management.
- The charge management circuit limits the to a maximum voltage of 4.2VDC.
