The AQ-CTRL-CRTN-ROD is Aqara's easiest-to-use yet mighty curtain controller. Just hang the Curtain Driver onto the rod/rail and start enjoying automated control of your existing curtains based on the weather, time, or when other Aqara devices are triggered. Features:  Up to 1 Year Battery Life* Zigbee 3.0 Protocol Popular Curtain Track Support** Built-in Light Sensor Maximum Load of 12 kg Easy Installation  One-Button Remote Control HomeKit and Other Ecosystem Support Adjustable Opening Speed and Scenes

*Requires AQ-HUB-E1, AQ-HUB-M1S-G2, AQ-HUB-M2, AQ-HUB-M3, AQ-HUB-CAM-G2H-Pro, AQ-HUB-CAM-G3*