Xiaomi Mijia Curtain Companion Hang-And-Use For U- / I-Shaped Track Roman Pole Smart Linkage Require BT Mesh Gateway1. Hang and use Ordinary curtain becomes smart 2. Mainstream compatible Support U I shaped track, Roman pole 3. Multiple control Curtain open close at will 4. Rich smart linkage Intelligent life self defined 5. Long Battery Life Up to 6 months, 6400mAh with Type C port 6. Small and Powerful Can move up to 12kg curtain Notice: You need set the Mi Home region to be 'Mainland, China' to get the newest supporting device list to add this device. And if