The M1 is LR Baggs' passive soundhole pickup designed to amplify your acoustic's projection without the aid of a battery. The M1's adjustable pole pieces provide great balance from string to string, amplifying a wide range of acoustics with varying bridge widths. When you're recording in the studio, the gold-plated 1/8-inch jack allows for quick and easy removal in a pinch. Your M1 includes a pre-wired strapjack harness, or you can use the included 10-foot external soundhole cable if you'd rather eliminate modifications to your instrument entirely. We've found this stacked humbucker design will give you a wonderful blend of string and body, and it's complemented by a quiet, hum-free operation.