This is a GROWNSY milk warmer! It's compatible with bottles from any manufacturer, and is a very convenient bottle warmer for nighttime feedings. I purchased it around the summer of 2021 and used it for a total of about a year and a half, that year and the 2025 fiscal year. ◾️Instructions are on the box via QR code, and the original box is included. ◾️Operation confirmed. There are scratches below the display screen and some scratches inside, but there were no particular problems with use. Please understand that this is a used item before purchasing. If you have any other questions, please feel free to comment.