Plug the main speaker into the power supply by using the power cable and plug. Main speakers are the ones that power the other smaller speakers and --- for that reason --- it is usually the largest bass sub-woofer of the various devices. Unravel the cable, hold the plug and connect it to the nearest wall socket.
Connect any other bass speakers and the smaller surround-sound speakers to the main power speaker. The manufacturer should have already inserted the connection ports --- usually called "Satellite Output" --- and there will be as many ports as there are speakers.
Also notice how the various connection ports are labeled "L" (left) and "R" (right). Don't worry about the left and right sides just yet; instead, hook up all the smaller speakers by plugging their audio jacks to the connection ports in any order.
Arrange the speakers to match their left- and right-sided presets. Look at the back of the main power speaker and arrange each speaker depending on whether it is connected to an L port or an R port. For example, take all of the R-connected speakers and place them on the right side of your desk/room/TV (as you face it). Experiment with height if you have several smaller speakers connected, e.g. one above the device, one in line with the device and one below it. Arrange the L-sided speakers in the same way.
Hold the main speaker's input cable and plug it into the device you want to amplify. All speaker systems will use a standard 3.5mm 1/8-inch audio jack, which can be plugged in to nearly all PC systems, television sets and personal audio devices.
Turn on the power socket and press the main speaker's "On" switch. Arrange your speakers to suit your audio tastes --- for example, move some of the speakers behind you if the audio does not appear to sound three-dimensional.