1. Has high and low tones
2. Speaker power: 10-50W
3. Speaker impedance: 4-8 ohms
4. Input voltage: 9-24V
5. Input current: 3A
6. Audio input: BT+AUX+USB+USB sound card
7. Power output: 30W+30W
8. Number of channels: 2.0
9. Protection mechanism: overcurrent, overheating, short circuit, anti-static protection
10. Function: Support Wuzhi Audio App
11. Dimensions: 71 x 50 x 20mm
12. Weight: about 106G
13. Note: 24V batteries cannot be used for power supply, because the full voltage of the battery will be around 28V