DOUBLE B1G Guitar Pickup Preamp Musical Instrument Pickup with Volume & Tone Control

Features:
High Quality: the pickup with a piezo pickup stick can connect external amplifier via the cable that has 1/4 inch jack, provide subtle and clear sounds.
Easy to Use: it is easy to control volume, bass, treble and phase via key and knobs, to acquire wanted mixed voice; and a light indicates battery status.
Hassle-free to Install: just a few simple steps can install the sound control module on the edge of soundhole with included adhesive pads.
Long-endurance: power supply of 2 CR2032 button cell ensures it continuously works for nearly 80 hours; and it is convenient to replace batteries.
Lightweight Portable: small guitar pickup, measures 8*6*3cm in size and about 2.50oz in weight, suitable for acoustic guitar.