Lightweight and easy to hang, no need to change the track: The curtain upgrade kit is lightweight and does not require any changes to the existing track. It is easy to install and convenient.Intelligent opening and closing, free control: With the intelligent electric curtain system, you can easily realize the intelligent opening and closing of the curtains. Whether it is manual remote control or automatic timing, you can control the opening and closing of the curtains as you wish.Applicable to 99% track types: Three accessories can be matched at will, suitable for 99% of curtain track types, including Roman rods, U-shaped rails and I-shaped rails, ensuring that your curtains can be easily upgraded.Convenient installation, fast and intelligent: No professional tools are required, just hang it up to make traditional curtains quickly intelligent and enjoy the convenience of smart life.Adaptation: Track type: U-shaped rail/I-shaped rail Roman rod type: Roman rod trackParameters:Product name: Intelligent curtain robotProduct model: (LY1668)Product speed: 10m/sProduct color: whitePerformance:Battery capacity: 4000mAh Battery life: 6 monthsCharging time: 8 hours Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin