【Smart Motor】 Motorized Zebra blinds Built-in Zigebb smart motor, and the decibel is controlled below 35db, which is quiet and environmentally friendly. The motor which has a long life and can be used for 4-6 months. For places with higher installation positions, you can also choose to use solar panels to charge. 【Smart Connectivity】Zebra blinds motorized offer two types of rechargeable motors. Motor a is a radio frequency motor, which can be connected to all Alexa and Google smart speakers through HUB (the hub needs to be purchased separately). Motor B is a Zigbbee motor that can interface directly with five versions of Alexa (Echo Studio, Echo 4th Gen, Echo Plus 2nd Gen, Echo Show 2nd Gen, Echo Show 10), if you have other versions of Alexa, you need at least one HUB to connect. 【How to measure? 】 Inside Mount: Binds width = Inside window width -1/4 inch. Blind height = internal window height, Measure the exact width and height of the inside of the window frame. The interior window installation depth is over 2.56 inches. Outside Mount: blinds width = exterior window width + 4 inches. Blinds height = exterior window height + 4 inches, measure the width of the outer edge of the window frame. 38W x 76H inches). Fabric width is 0.8 inches shorter than valance size. 【Easy to Control】You can use the remote control to control the raising and lowering of 16 motorized shades individually or simultaneously. You can also control the raising and lowering of the smart blinds with simple voice commands, e.g. "hi, Alexa, please open the shades 50%", which is very convenient and friendly for children and the elderly. Say goodbye to troublesome manual curtains. 【Custom Sizes and After-sales Guarantee】Motorized zebra shades support customization. Click "Customize Now" on the right to personalize your blinds. Once customized, items cannot be resold. Please measure accurately before purchase. For color and size assistance, email us on ; we'll confirm within 12 hours. Enjoy a two-year warranty on motor and remote. Contact us promptly for repairs or replacements. Report fabric or accessory damage within 30 days for swift replacements. 【Note】 Motor A (RF Battery Motor) doesn't include a HUB. It's an RF motor for remote control only. To connect with Alexa and Google smart speakers, a separate hub is required, priced at 29. To link with Alexa and Google devices, add the Smart RF HUB to your order. If your device fits the types（Echo Studio, Echo 4th Gen, Echo Plus 2nd Gen, Echo Show 2nd Gen, Echo Show 10）you can consider Motor B (Zigbee Smart Motor). If you only need remote control without smart device linking, ignore this. Detailed description: Material: 100% Polyester Panel Molding: Fabric is two-tone, made of blackout polyester and sheer fabric for privacy Installation requirements: Built-in order width=window width-1/4" Exterior order width = Window Width + 4" For interior installations, please ensure the depth of the window frame is greater than 2.56 inches For exterior installations, the fabric will completely cover the window opening After-sales: Free warranty for motors and remote controls within 2 years Parts List: 1*Zebra Window Shades