Using your Edifier S1000MKII speakers is a breeze. First, connect the speakers together using the 8 ft. speaker connecting cable. Then, you can connect your devices. You can use the RCA inputs, optical or coaxial inputs, or simply pair via Bluetooth. Adjust the volume, bass, and treble using the rotary controls on the rear of the speaker or use the wireless remote control. When using the remote, it can also control your Bluetooth - connected devices. To switch between different inputs, just push the volume knob. For maintenance, keep the speakers in a dry and clean place. You can remove the grilles for cleaning if needed. Avoid exposing the speakers to extreme temperatures or humidity. Make sure to use the correct input sensitivities as mentioned in the features. If you're not using the speakers for a long time, it's a good idea to unplug them from the power source.