Smart Motor: Z425 smart battery motor can directly compatible with 5 Versions of Alexa. (Echo Plus 2nd Gen, Echo Show 2nd Gen, Echo Studio, Echo Show 10, Echo 4th Gen). No Smart Bridge needed. YL23 Bluetooth motor can directly work with Yoolax Home App without Smart Bridge. Connection with all versions of Alexa &Google Home requires a Bluetooth hub (available at Yoolax Store). Apple Homekit Motor can directly work with apple devices.  
 MADE-TO-ORDER: Motorized Blackout Window Shades is custom made, you will see a "Customize Now" button on the top right. Then please follow the guide to place the order. We will send an email to all customers to double confirm the size in 24 hours, please attention to the email the day after your order. And other special sizes you can contact us via Amazon message.  
 SERVICE: Usually dispatched in 4-5 workdays after size confirmed. Easy install, all mounting kits, instructions are included in the package. The remote be basically programmed before ship. Yoolax offers a 2-year warranty on motors and controls. Any damage or failure of motors or controls happens in the first 2 years, we provide repair or replacement free of charge.  
 IMPORTANT: Receiving damage of fabric or components, please take photos, send them to us within 30 days, we'll work with you for free replacement at a valid time. Shade width including side brackets or valance edge (which takes up to 0.53'' on each side), so the actual fabric width is 1.06'' narrower, sometimes will let the light come in if the shade is Inside Install to the window frame. To solve the light leakage, we offer the tracks on the Customize page.