The Bose Companion 3 Series II is a 2.1-channel multimedia speaker system (introduced in 2006) designed for computers, featuring two small, preassembled satellite speakers on stands and a separate Acoustimass module for deep bass. It offers rich, clear sound for games, music, and movies using proprietary TrueSpace stereo processing and includes a multi-function control pod.
 
Key Features and Details
Performance: Uses TrueSpace signal processing to create a wider soundstage from compact speakers.
Design: Satellites come with stands that angle upward for better desktop sound, or they can be removed for wall mounting.
Connectivity: Uses a 3.5mm input to connect to a computer or other audio sources. 
Amazon.com +3
Components: Two magnetically shielded satellite speakers and a hideaway Acoustimass module.
Control Pod:
 A small, wired, touch-sensitive control pod features volume control, a mute button, a headphone jack, and an auxiliary input for connecting other devices.
System Specifications
System Type: 2.1 channel.
Subwoofer: 5.25" driver.
Control Pod Features: Volume, mute, headphone jack, aux input. 
Bose +4
While the system is no longer manufactured by Bose, it was highly regarded for delivering "big sound" in a small package.