Made in the USA.  A fully 'Active' preamp without the need of a battery! The power of the 'Super Capacitor'. Charge for 60 seconds, then perform for 16 hours!

The Mi-Si 'Crystal' is designed to retrofit existing passive pickup systems to make them active. It features a battery-free preamp designed specifically to work with undersaddle guitar pickups using passive piezo elements.  The preamp for this system uses Mi-Si’s custom piezo linearization scheme – allowing for the most truthful and accurate sound from the pickup.

All you have to do is power up for 60 seconds using the Mi-Si Power Charger, providing you with up to 16 hours of performance time!

Mi-Si incorporates the use of a state of the art 'Super Capacitor' which takes away the need for a battery.  Super Capacitors are tiny coin sized rechargeable units that are permanently built into the preamp. Recharge the unit by plugging it in for just 1 minute!  One minute of charging time will fully charge the super capacitor and gives you 16 hours of performance time!

All you have to do is power up for 60 seconds using the Mi-Si Power Charger, providing you with 16 hours of performance time!

Mi-Si Electronics proudly introduces a truly significant and unique breakthrough for high-end acoustic amplification: a high-performance, fully ACTIVE preamp that draws its power from a 'cutting edge technology' rechargeable 'Super Capacitor' and therefore does NOT NEED BATTERIES. Super Capacitors are tiny coin sized rechargeable units that are permanently built into the preamp.  No 9-Volt, no AA, no AAA, no lithium - NO BATTERIES at all! Charge for 60 seconds, then perform for 16 hours…. Wow!

A special blend of new energy sources with very low-power components and the ability to design compact and efficient circuits now make battery-free products a reality. This extremely energy-efficient design not only means no batteries, but no battery wires, no dead or fading batteries, no RF interference, no battery compartments, and no need to remove a battery from your instrument before transportation.

Mi-Si Electronics 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. In the past, conventional circuit design components have been a burden to acoustic musicians, incurring extra cost, requiring additional space, and decreasing reliability and tonal quality.  Making a signal pass as simple as possible has not been a luxury, but a necessity. This knowledge is the driving force behind Mi-Si's approach - minimalist design with maximum functionality. Musicians have known this all along, the fewer obstacles between your pickup and your amp, the better your sound.

Saving the planet!
With other brands, every spent battery becomes hazardous waste and needs to be properly disposed of to avoid toxic chemicals leaking into soil and waterways. Mi-Si environmentally conscious and advanced designs eliminate this waste.

Instructions:
Insert the Mi-Si Power Charger into your instruments regular output jack socket and charge for just 60 seconds.  This gives you an average of 16 hours performance time - Wow!

Package includes:

• Mi-Si 'Crystal' battery-free endpin jack preamp

• Mi-Si Power Charger

• Made in USA