After more than 25 years of designing and building preamps, Mi-SiÕs team of engineers proudly introduces a truly significant and unique breakthrough: a high-performance, fully active preamp that does NOT NEED BATTERIES. No 9-Volt, no AA, no AAA, no lithium Š NO BATTERIES at all!
Every used battery is a hazardous waste and needs to be properly disposed of to avoid entrance of toxic chemicals into our soils and waterways. Our battery-free technology is environmentally conscious and designed to eliminate this disposal problem.
Our technology is much more than just a battery-free concept. Our preamps have the most natural and the least quacky sound on the market.  Mi-SiÕs custom linearization scheme allows us to get the best possible sound from a piezo pickup.
Obviously, the less stuff put in the instrument, the better its mechanical and acoustical integrity is preserved. This philosophy is the driving force behind Mi-Si's approach - the minimalistic design with the maximum functionality.

About Mi-Si

Mi-Si Electronics Design, Inc. (pronounced "My-Sigh") was founded in April 2004 by an experienced team of engineers with a passion and a drive to make music technology better - for both artists and music lovers. Although new to the marketplace, Mi-Si's engineers bring an arsenal of expertise and more than 25 years experience in the amplification field, developing exciting and revolutionary electronics specifically designed for acoustic amplification.

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Player's Choice Awards 2011 Acoustic Guitar Bronze.

News

Mi-Si and Pick-up the World

Mi-Si is pleased to announce that Pick-up the World has selected Mi-Si as the addition to their product line. We are excited to be working with Pick-up the World and look forward to providing musicians with the best sound yet without batteries.

For more information on Pick-up the World, please visit www.pick-uptheworld.com

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Mi-Si Debuts Motif, A Condenser Under-Saddle Pickup

True to its tradition of engineering innovation, Mi-Si has introduced Motif, the industryā€™s first condenser under-saddle pickup system. Motif is the result of Mi-Siā€™s groundbreaking research and development in acoustic amplification, research that pioneered battery-free active amplification, a wirelessly controlled preamp (Cutless), planar coil magnetic pickups for acoustic guitars (Duo and Magpie), and now, and [...]

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Mi-Si and Fender Japan

Mi-Si is pleased to announce that our product, Crystal, has been selected by Fender Japan to power their ukuleles. For more information on ukulele made by Fender Japan, please see: http://bit.ly/1llGQi1.

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