Fantech Arthas GS733 Mobile Mobile Gaming and Music Speakers with Bass Resonance Membrane is a portable USB powered speaker built in sound amplifier designed for mobile gaming and music.

Your speakers get power from the USB port on your laptop or netbook, so no wall plug is required
The speakers receive audio through a standard 3.5 millimeter plug, so you can connect your laptop or netbook

The GS520 desktop speakers are also great for movies and music. Endless fun for different entertain ways. With a light touch, the backlit mode of the RGB lighting bar can be switched with 6 modes. With a simple click, the volume can be precisely adjusted.

Redragon GS560 Adiemus RGB Desktop Soundbar, 2.0 Channel Computer Speaker with Dynamic Lighting Bar Audio-Light Sync/Display, Touch-Control Backlit with Volume Knob, USB Powered w/ 3.5mm Cable

The Redragon Toccata Stereo Gaming Speaker (GS700) is a USB-powered desktop speaker with a powerful subwoofer. The bottom-facing subwoofer produces rich bass, adding another dimension to your videos, games and music

This 2.1 speaker system delivers balanced acoustics and provides enhanced bass from a compact subwoofer.

Wireless 2.1 Speaker System for Computers, Smartphones and Tablets

Logitech Z607 5.1 surround sound speaker system with Bluetooth streaming delivers great sound and lets you stream from any Bluetooth-enabled device.