This Dandy Gadget: During Musikmesse 2009 in Frankfurt, Germany, Sanyo and Korg company is making collaboration. The Korg company promoted its best selling pocket-sized synthesizer, KAOSSILATOR using four AA Sanyo Eneloop rechargeable batteries. As rechargeable batteries, Sanyo Eneloop provides the stable voltage and resistance to cold temperatures that help to maintain sound quality of KAOSSILATOR as well as the dry cell batteries.
The price of Korg KAOSSILATOR is around $117 and $12,99 for four AA Sanyo Eneloop rechargeable batteries is $12.99. [Dandy Gadget Source]