The Wireless DJ is a completely self-contained audio streaming system based on Class 1 Bluetooth 1.2 Advanced Audio Distribution Profile technology. Everything needed to transmit and receive music wirelessly from your computer to any stereo or powered multimedia speaker system is included in the box, so there's no need to have an existing wireless setup in your home.
The system consists of three components: the Bluetooth transmitter that plugs into your Windows PC; the remote cradle / receiver that connects to your audio system and charges the remote; and the remote itself.
The Bluetooth transmitter is powered by the USB port when it is plugged into the PC. It is painted to match the remote, and is made to be tucked away on a shelf or desktop. An LED light changes from red to blue indicating that it is in use.
The Wireless DJ receiver acts as a charging station and cradle for the remote, and receives the digital signal from the transmitter. It also handles the digital to analog conversion for output to an audio system connected via standard coaxial (RCA style) cables. The receiver is made of plastic painted to match the remote, and has a strip of the same black reflective plastic found on the top half of the remote. Much to the chagrin of my audiophile friends, the Wireless DJ does not contain S/PDIF outputs. In all fairness, however, when it comes to simple 2-channel stereo sound, an S/PDIF connector would do little more than clean up a little electrical noise that most people wouldn't notice anyway.