Portable Mini USB Stereo Speaker Sound Bar Clipon Speakers For Notebook Laptop Phone Music Player Computer PC With Clip Features: Clip design for attaching to your laptop easily. It can sit comfortably on your LED monitor. It will take up little space of your desk to make your desk clearly. USB cable for power, plug and play. Lightweight and portable to carry anywhere you like. Built-in volume control. Use drive-by-wire technology to adjust the volume, and the wired controller uses the humanization design and can easily adjust volume. Two stereo speakers can reach) a balance sound effect, pure and stereo, and joint together to stand on desk. Compatible for XP, VISTA), Win 7, and OSX. Product Description: Product positioning: Laptop sound system Color: White Material):Plastic Speaker system: 2.0 speaker Active Passive: active Rated power (W) : 2W+2W stereo Function adjustment: volume adjustment Speaker Unit: Two 40mm rubidium iron-boron speakers, 4 ohms Anti-magnetic function: full anti-magnetic design Speaker size: 603090mm (single) 6030180mm (pair) Input power supply: USB power supply ~5V, 500MA, 50Hz Input interface: 3.5mm audio source interface Package size:13x9x4cm Gross weight:191g/ 0.42 lb Include: 2x Audios