50W MP3 Stereo Audio Digital Power Amplifier Board Bluetooth Amplifier Module, without Shell

1. Using the rotary encoder used in high-end speakers, stepless tuning, smooth hand feel, one-key start and stop
2. High-quality all-copper DC plug, long life
3. 3.5mm audio output, connected to active power box
4. Free large area heat sink
5. Number of channels: Left and right dual channel (stereo)
6. Protection mechanism: Power reverse connection protection, short circuit protection, self-recovery overheat protection
7. Purpose: Bluetooth speaker amplifier motherboard
8. Bluetooth version: 5.0
9. Adapter speaker: 0-200W 4 ohm 8 ohm 16 ohm
10. Transmission distance: 15 meters (without blocking)
11. Supply voltage: DC 5-24V
12. Dimensions: 56x50x18mm