I bought this about 8 years ago. You can use it with the AC adapter, or you can use it cordless with batteries. I've confirmed that it works! You can use it right away with the AC adapter. It still sucks well for its age. However, there is a general feeling of use and yellowing. I lost the original bottle, bottle stand, hood, nipple, and cap, so I was using a Nishi-Matsuy's baby bottle. There are bottles that can be attached even if they are not the Pigeon breastfeeding bottles, so please try the ones you have at home. The Nishi-Matsuy's baby bottle is the one we used, so it has a lot of wear and tear, but you can use it if you'd like m(_ _)m I'll also include a Pigeon nipple SS and LL as a bonus, although they are deteriorated and yellowed. Please throw them away if you don't need them. Because it will be sent via Yu-Packet Plus, the box is not included. As shown in the 7th photo, I will ship it with the electric part, soft cup, main body, and silicone valve attached, and the soft fit cover and suction port inserted. (There are two silicone valves, so I will put one in the Nishi-Matsuy's baby bottle.) When it arrives, please disassemble the parts and sterilize them before using m(_ _)m Please refrain from purchasing if you are concerned about the details, as this is a used item. Thank you for reading this long description ☆