1.Bluetooth version: 5.0 (without sunscreen, 10 meters) 2.Output channel: 2.0 channel 3.Chip model: TPA3116D2*2 1.Working mode: class D 2.Static current: 60mA 3.Work efficiency: 90% 4.Audio input: support bluetooth, AUX analog signal, USB sound card. 5.MAX output power : 100W*2 6.Frequency response: 20Hz to 20KHz 7.Working voltage: DC12V - 24V 8.Recommended power voltage: DC19V 9.Fit speaker parameters: 4-8 ohms 10.Size: 98 mm * 70mm * 25mm 11.Net weight: about 145g