Piezo transducer amplifier for acoustic guitars. Easy to use patented wood design provides great dynamics and detail. Allows for the permanent invisible, inside mounting of the Artist Transducer Pickup. A special hot glue formula makes the Artist Kit the very best inside permanent-mount pickup system available today. The result is a dynamic natural-sounding amplifier. The 24‘‘ cable terminates with a female 1/4 ‘‘ jack that connects to your guitar‘s strap button.