HOMEDEMO Electric Blinds Rechargeable Blackout Roller with Motor & Remote Control, Dark Grey 45x110cm (WxH), Roller Inside without drilling clamp fix/with drilling, Smart Roller compatible with Alexa.

"ELECTRIC ROLLER MOTOR AND REMOTE CONTROL: Just one click! You no longer need to manually pull the roller up or down using a chain or handle, you can easily control it with a click on the remote control, with a maximum range of 20m","RECHARGEABLE: Lithium battery powered, comes with a 2-meter charging cable. Energy saving and environmentally friendly. Can also be used with a solar panel, but not included","100% LIGHT-TIGHT AND BLACKOUT AND THERMAL: The special fabric on the back makes the blackout blind completely light-tight and achieves 100% light blockage. All UV rays are blocked, and your privacy is protected. The blackout coating keeps out sunlight and heat in the summer as well as cold air in the winter","300x300D fabric thickness: The 300x300D fabric is thicker than normal blinds, allowing for better blackout. Without silver coating, environmentally friendly and Oeko-Tex certified. It has no chemical odor, is easy to care for, and suitable for humid environments. The metal wall bracket and sturdy aluminum rod prevent wobbling of the blind. There is no gap between the upper PVC rod and the fabric, so no light can penetrate","MEASUREMENT METHOD: Please measure the width of the glass before purchasing. For electric blinds, the fabric width of the privacy blind is about 3 to 4 cm narrower than the ordered width. The ordered width should be about 6 to 8 cm wider than the glass width. Suitable for window frames with a fold thickness of 1.7 to 2.5 cm, but not suitable for skylights"