Description 6 Watt USB computer speaker. Build in amplifier with 6W PMPO power. With power control, power LED, volume control and earphone jack. Good sound quality, portable. Magnetically shielded and not affect to CRT monitor. Power by USB port. Compatible to any PC, laptops and Mac that with USB port and 3.5 audio out.   Description: Item type: Computer Speaker Dimensions: (6.69 x 2.76 x 2.56)” / (17 x 7 x 6.5)cm (L x W x H) USB Length: 100cm / 39.37″ Power: 6W Color: Black Weight: 324g / 12oz Package Include: 2 x 6W USB Power Laptop Computer Speakers Ear Jack   Note: The colors deviation might differ due to different monitor settings.