Using your Kanto YU6 Powered Bookshelf Speakers is a breeze. First, connect the speakers to a power source using the provided power supply. You can connect various devices to the speakers. Use the 3.5mm AUX jack for devices like smartphones or tablets, the RCA with Phono Switch for turntables, or the Optical (TOSLINK) ports for other audio - capable devices. You can also stream music wirelessly via Bluetooth. Control the speakers using the single - knob on the front or the included remote. You can adjust the input, volume, and tone. When you're not using the speakers, they'll automatically go into standby mode. Just turn them on again when you want to use them. For maintenance, keep the speakers in a dry and clean place. Wipe them with a soft, dry cloth regularly. Avoid exposing them to extreme temperatures or humidity. If you're using the subwoofer output, make sure to connect a compatible subwoofer to enhance the bass. And don't forget to replace the batteries in the remote when they run out.