what a waste of money. whatever the arm things that are in the pictures are, are NOT included. instead it comes with two sets of tiny wheels that broke as soon as I attempted to attach them to my curtain and even if I had there was no room or area to put in the actual curtain so it would open it. I strongly do NOT recommend this product.

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1PC Short Range Wireless Smart Curtain Robot, T/U-shaped Track APP Control Light And Temperature Sensor 4000mA Lithium Battery 6 Monts Service Life 17.64LB Maximum Load-bearing, 787.4inch Maximum Stroke, Easy To Install And Operate, 10m/s Speed, Control Within 393.7inch Type-C Interface For Alexa & Google Home & APP Remote Control

Smart Life Home

شراء 1PC Short Range Wireless Smart Curtain Robot, T/U-shaped Track APP Control Light And Temperature Sensor 4000mA Lithium Battery 6 Monts Service Life 17.64LB Maximum Load-bearing, 787.4inch Maximum Stroke, Easy To Install And Operate, 10m/s Speed, Control Within 393.7inch Type-C Interface For Alexa & Google Home & APP Remote Control