Using your Fender Hot Rod DeVille 212 IV is easy. First, connect your guitar to the input jack. Then, plug the amplifier into a 230V EU power source. You can adjust the tone and volume to your liking using the knobs on the front panel. The two - button footswitch lets you control certain functions while you're playing. When not in use, cover it with the fitted cover to protect it from dust. Keep it in a dry place and avoid exposing it to extreme temperatures. Regularly check the tubes and cables for any signs of wear. If you need to move it, be careful due to its weight of 55.25 lbs (25.06 kg). And remember, always follow basic electrical safety rules when using this amplifier.