The price of this item includes a contribution to a Product recycling fund to ensure that waste electrical and electronic equipment is collected and recycled in a responsible manner.
Alkaline batteries have a longer life and are more environmentally friendly than manganese dioxide batteries. http://www.ikea.com/jp/en/images/products/alkalisk-battery-alkaline__55110_PE160110_S4.jpgALKALISK Battery alkalinehttp://www.ikea.com/jp/en/catalog/products/20031604/200.316.04IKEA¥ 199