AltecLansing 2100 : 50W 2. 1 Enhanced Speaker System Black w/ Wired Remote $99.00 AltecLansing 220 : 11W 2. 0 Versatile Speaker System Silver/Black $34.00 AltecLansing 221 : 50W 2. 1 Versatile Speaker System Silver/Black $45.00 AltecLansing 251 : 90W 5. 1 Versatile Speaker System Silver/Black $95.00 AOpen MA-691 : 2-Speaker w/ single volume control, headphone jack $6.00 AOpen MS-710 Pro : 360W White w/ A3D Sound $19.00