From LR Baggs:
The M1 is a patented humbucking pickup with a twist. In a common stacked humbucker, the lower coil cancels hum, but doesn’t contribute anything positive to the sound. We unlock the lower coil with a carefully tuned support that allows it to capture higher frequency resonances. As the pickup moves with the guitar’s soundboard, a body signal is created in the suspended coil that adds presence and realism to your amplified sound.

The M1 Active’s plug-and-play design features a preamp with audiophile circuitry for that pure acoustic sound we are known for. The built-in electronics boosts the pickup’s output for a full and direct signal to any acoustic amplifier or P.A. system, eliminating the need for any external preamps. The M1 Active includes a volume control and adjustable pole pieces for perfect balance and tone between the strings.

Features:

• Highly Feedback-resistant

• Volume control

• Built-in gold plated 1/8" jack makes removing the pickup a snap

• Long battery life – 1,000 hours on one 3V lithium coin cell

• Adjustable pole pieces for perfect balance with most string types and gauges

• Quiet hum-free operation

• Includes a pre-wired strapjack harnes

This Pickup is in Brand New condition from LR Baggs.