Thank you for viewing. This is an aftermarket pickup for a classical guitar. I am selling it because I couldn't install it properly on my guitar due to the grooves. Please check the special notes below, and if you are interested, please consider purchasing. ■ Other Special Notes ■ ・ Operation has not been confirmed as I was unable to install it. ・ The main unit, outer box, and instruction manual are included. ・ There are no noticeable scratches or stains, but there may be minor scratches or scuffs that are not visible in the photos, so please be aware of this if you are concerned. ・ The cable has marks on it, possibly due to long-term storage (see image 3). ・ I will clean it with alcohol before shipping, but please understand that this is a used item that has been stored by an individual before purchasing. ・ After wrapping it in packing material, I plan to ship it via Yu-Packet Plus using the Yu-Yu Mercari service. ・ Please refrain from excessive price negotiations.