Features:

• power supplied by USB port from PC/notebook
• 2.5" speakers
• volume control
• 3.5 mm audio stereo jack

Specifications:

• output power 4 watt RMS
• driver unit 2.5" mm, 4 ohm
• frequency response: 160 Hz ~ 18 KHz
• signal-to-noise ratio: >80dB
• volume control
• power supply: USB
• audio in: 3.5mm plug

Dimensions:

• Unit Size - 83,5x128,5x84 mm
• Size of package - 210x140x93 mm
• Speaker body weight: 598 g

- See more at: http://computer2000.bg/?route=product/product&product_id=24001&ct=t(Genius_02_20172_2_2017)&mc_cid=6a0f666945&mc_eid=70cf9f8e30#sthash.esfTq0R3.dpuf