SwitchBot white compact smart device, attaches to curtain rails to automatically open and close curtains. - Brand: SwitchBot - Color: White - Function: Smart device - Design: Compact design Used for about six months a few years ago. Has been stored at home since then. I don't know the details of its operating condition at the time, and I haven't checked its operation. Therefore, it is listed as a "junk item." Please only purchase if you understand this. Limited-time listing until the end of this week. Price negotiations are welcome.