Features: Intelligent curtains opening and closing Automate your existing blinds, shades, curtains in the simplest and most cost-effective way. Motor can set upper & bottom limit positions and limits can be saved even when power off. Li-battery Charging: Built-in 2000mAh battery, Powered by charger(Power adaptor is not included) ensures long time continuous working with the large battery capacity.Save more money and energy low power consumption. Works with any plastic beaded chain or metal beaded chain that is looped. products are used in venetian blinds, vertical blinds, honeycomb blinds, blinds, roller blinds, soft gauze curtains, no need to disassemble the curtains , and the installation is simple. Smart in seconds Functional description: 1. App control / remote control 2. Timing switch 3. Temperature sensor off 4. TUYA scene mode 5. Bluetooth control distance: 10 meters, support remote control, remote control needs to be equipped with a Bluetooth gateway (included) 6.It can be connected to For , home, , Xiaodu, Xiaoai and other smart speakers (needs to be equipped with a Bluetooth gateway (included)) 7. Battery: Built-in 2000mA lithium battery note: Different batches may result in differences in product appearance and color, which does not affect usage Material: plastic colour: white Package Contents: 2 x Roller blinds Motor 2 x Remote control 2 x Gateway Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.