1. Make sure all wall and power outlet switches are on, and that all switches for your speaker system are on. Switch mains power to the system on/off by pressing the bass speaker volume button located on the back of the subwoofer. This button acts as power button when pushed in. 2. Ensure that the input jack is pushed all the way into the output socket on the source device. Check all the connections and secure them. 3. Your volume settings are too low or muted. Increase your volume by pressing the + key located on the right satellite. You can also check volume from your source device. If you are using a computer, check the volume control located in the taskbar, as well as the volume control in the media player or browser. This will mean a total of three volume controls in your computer alone. 4. To mute and unmute the speakers, touch the shining + and - controls on the right-hand "stick" at the same time. Only a slight touch is needed, since these are purely electronic touchpads.