Computer Speakers

**Output voltage:3.7V-4.2V
**output power:3.0W
**Input:5.0V
**Loud speaker:4Ω / 3W
**Signal and noise ratio(SNR):≥85db
**Frequency Response:100-20KHZ
**Output distortion rate≤0.5%
**Battery: 300mA
**material: plastic, ABS
**Color:black/red/blue