Battery Type: None. Brand: Logitech. Features of Product: Its 360-degree sound helps project audio evenly in all directions, so you get a great listening experience throughout the room. Amplified two-way design realistically reproduces sound for clear, natural acoustics. With 26 watts (RMS) of power, ita€™s loud enough for a party. And detailed enough for subtle tones. Auxiliary input lets you quickly plug in your iPod without having to unplug the speakers from your computer. Simple two-speaker standalone system offers a full range of sound in a stylish package thata€™s easy to set up, especially with notebook computers. Headphone Socket: Yes. Integrated Amplifier: Yes. Interface: USB 2.0. Magnetic Shielding: Yes. No of Batteries Required: N/A. No of Satellite Speakers: 2. Power Option: Mains Only. Product Depth: 17.5 cm. Product Height: 25 cm. Product Weight: 500. Product Weight Units: g. Product Width: 25.5 cm. Remote Control: No. Speaker System: 2. Subwoofer: No. Treble or Bass Controls: No. Volume Control: Yes. Wall or Desk Mountable: Desk only.