Using the Kanto YU6 powered bookshelf speakers is a breeze. First, connect the speakers to a power source using the provided power supply. You can connect your audio devices in multiple ways. Use the 3.5mm AUX jack for most portable devices, the RCA with Phono Switch for turntables, or the Optical (TOSLINK) for high - quality digital audio sources. If you want to stream music wirelessly, pair your device with the speakers via Bluetooth. Adjust the settings using the single - knob control on the front or the included remote. For more bass, connect a subwoofer to the subwoofer output. When it comes to maintenance, keep the speakers clean by gently wiping them with a dry cloth. Avoid exposing them to extreme temperatures or humidity. Make sure to turn off the speakers when not in use to save energy. Also, check the cables regularly for any signs of damage and replace them if necessary. And don't forget to change the batteries in the remote when they run out.