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: 20-300W 4 ohm 8 ohm
10. Transmission distance: 15 meters (without blocking)
11. Supply voltage: DC 5-26V
12. Dimensions: 53x18x58mm
13. Weight: about 70g
