Martin OM-21 Standard Series Acoustic Guitar Electronic Kits sultry jazz tones from the

sultry jazz tones from the neck pickup and ripping blues tones from the bridge pickup

Polarity switch for universal compatibility

Featuring an alternative retro aesthetic including 1930s-inspired diamond F-holes

Power : USB bus power

Martin OM-21 Standard Series Acoustic Guitar Electronic Kits sultry jazz tones from theMartin OM 21 Acoustic Guitar The Martin OM 21 Acoustic Guitar offers top notch, hand built craftsmanship. Based on time tested luthier approaches, coupled with new technological breakthroughs the result is a Martin guitar of premiere construction and design. The OM 21 is built on the OM platform, a guitar body style that presents strong lower midranges and versatile dynamics. With a smaller length, depth and waist than the standard dreadnought body