This smart electric Roman Shades does not require drilling holes for installation, and the included solar charging panel does not need to be charged. The included smart bridge（ Zigbee & Bluetooth HUB） not only allows for remote control, but also enables voice control and mobile phone control after use. No drill Roman shades, Cordless systems , Easy to install, no need to damage the wall Easy to install Cordless operating system, pull and stop, freely adjust the position of the curtains to control light privacy and styling. The special preparation process, after the designer's careful design, is made by machine to imitate the preparation of the ancient Chinese royal family, which has the function of excellent view-through and heat insulation. Light filtering performance, penetrates part of the sunlight, isolates strong light, protects the home and eyes in the family from strong light, while safeguarding the indoor light sufficiently. Versatile application, Suitable for various rooms and spaces such as living rooms, bedrooms, and offices, providing a comfortable and practical window treatment solution.If you don't know how to choose a size, check out the measurement guide in the 7th picture from the main image or contact me via Amazon mail! No Tools No Drill Cordless Motorized Roman Shades