Shadow Sonic-NMG Soundhole Preamp

The Shadow SH Sonic NMG is an easy-to-install preamp system for steel
string guitars. It comes with a NanoMag pickup which easily adheres to
the end of your fingerboard. This completed shielded system
incorporates active amplification in the pickup itself, which makes it
100% hum and noise free.

NanoMag Pickup
Easy Installation
Volume, Bass, Treble Controls
Convenient Battery Access (2x CR2032)
250 Hours of Battery Life
LED Low Battery Indicator
Includes Endpin Connection