This Korg 4-AA External Battery Pack accepts four AA alkaline, lithium, or NiMH batteries, and is designed for use with the MR-1 Hand-Held Digital Audio Recorder. This battery pack is especially ideal for situations out in the field when the option of recharging the built-in battery is not available. Just make sure you take along several sets of fresh batteries and you will be covered for any situation.
Long connecting cable allows for pack to be kept on-body