This is a contoured microphone for converting an acoustic guitar into an electric-acoustic guitar. Ideally, it should be installed in three places: on both sides of the back of the soundhole and near the bottom of the back of the soundhole❣️ You can easily attach it with the adhesive by peeling off the sticker on the back of the microphone❣️ Basically, remove the strap end pin, widen the hole to fit the shield jack, and secure it tightly with the screw❣️ Fix the wires in several places with the included adhesive sheets, and you're done‼️ Quantities are limited, so if you're interested, please order soon‼️ *We also offer conversions of the acoustic guitars we sell into electric-acoustic specifications, so please inquire.*