Using the Yamaha TF3 digital audio mixer is easy. First, connect it to the correct power supply included with the product. Then, you can start plugging in your audio sources to the appropriate channels. Adjust the volume, tone, and other settings as you like. When it comes to maintenance, keep it in a dry and clean place. Avoid exposing it to extreme temperatures or moisture. Regularly check the connections to make sure they are secure. If you need to move it, use the sturdy road case for protection. That way, your mixer will stay in good condition and provide great audio for a long time.