Battery replacement is needed, but I can't confirm if it works. It's being sold at a bargain price. Please be aware that it may not work even with new batteries. Only purchase if you understand and accept this. There are pen marks on the cover. The buttons didn't respond well from the start, and I don't think much music played. I hope someone can use it as a picture book(*´◡`*) "Classic Music Bedtime Storybook" Reiko Nakagawa / Sam Taplin / Juzi Kabiczi Price: ¥2000