A. We apologize for the inconvenience, but we do not reissue the warranty card for the following reasons.

・ It becomes impossible to confirm the purchase destination and purchase date.
・ The warranty period from the date of purchase becomes unknown.

Thank you for your understanding.

A. The battery may be dead or the power may be the cause. First, check that there is no problem on the power supply side and that it works normally with a new battery. If the symptomatology does not improve, please contact us using the inquiry form.

A. It is possible. However, the effector for the guitar is manufactured and designed according to the band of the guitar.
　Therefore, it may not be possible to expect a sufficient effect, so please consider it carefully.

A. The guitar shield may be connected in the wrong order or the voltage may be low.
　Check the input order, and if it is a battery, try connecting the power cable once.
　If you still do not hear any sound, please contact us using the inquiry form.

A. You can use a commercially available 9V battery without any problem.
　However, depending on the product, the voltage may not be enough, so we recommend a good quality battery.