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

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