Stereo speakers powered from the computer's USB port, or any 5V DC source. (eg USB charger, power bank).
The size of the speakers ensures very good sound quality.
Speaker output power: 6W - 3W * 2
Power supply source: USB DC 5V
Frequency carried: 60HZ- 20KHZ
Signal to noise ratio:> = 60 db
Input resistance: 4 Ohm
Dimensions of a single speaker: 80 x 85 x 78mm