※ Please refrain from price negotiations. DEAN MARKLEY PROMAG Acoustic Guitar Pickup Purchased on Mercari at the end of November last year. I am selling it because I bought an electric-acoustic guitar and no longer need it. Body only, with dirt and scratches. The sponge that fits into the soundhole has deteriorated. Sound output has been confirmed, but the sound is quiet unless you use a preamp, etc. Please be aware of this.