Using this Fender The Bends Compressor Guitar Effects Pedal is easy. First, connect it to your guitar and amplifier. You can use a 9V battery, which is conveniently accessed through the magnetically latched hinged door. Turn on the pedal and start playing. Use the Drive and Recovery controls to adjust the compression according to your playing style. If you want to keep your natural pick attack, use the Blend control to mix in the dry signal. Notice the Amp Jewel LED. When it changes from white to pink, it shows the compression circuit is working. As for maintenance, keep it in a dry place and avoid dropping it. Clean it gently with a soft cloth. When not in use for a long time, remove the battery to prevent damage.