Sony: SRS-D25 Multi-Channel Portable Speakers (White) -- $40

Features

2.1ch PC speaker (Satellite x2 , Subwoofer)
25W output power for powerful bass and loudness
Compact subwoofer for desk-top use
Control function on satellite speaker
Headphone-out, Audio-in on control part
Magnetically shielded

Speaker System (Satellite) Magnetically-Shielded
Speaker System (Subwoofer) Active
Power Output (Satellite) 5W + 5W
Power Output (Subwoofer) 15W
Speaker (Diameter) Satellite: 38mm, Subwoofer: 67mm
Speaker Impedance Satellite: 4ohms, Subwoofer: 4ohms
Input Stereo Mini Plug-In x 1
Power Source Built in AC transformer
Dimensions (W x H x D) (Satellite Speakers) 65 x 65 x 67.5 mm
Dimensions (W x H x D) (Subwoofer) 208 x 118 x 130 mm
Weight Satellite Speakers: Approx. 90g, Subwoofer: Approx. 2,000g