Klipsch presents the ProMedia 2.1 Wireless speaker system for your computer. The system uses 2.4GHz wireless technology for interference-free performance up to 30 feet away. It is THX-certified. The ProMedia 2.1 Wireless is wireless in the sense of no wires attach to the computer. The systems subwoofer plugs into a wall outlet for power and connects to two satellite speakers via wires. Klipsch ProMedia 2.1 Wireless and the origingal ProMedia 2.1 are available from Amazon for $199.00 and $149.99