For sale due to replacing my laptop. This is an HP PC purchased in 2018. The OS is Windows 10 Home. The monitor rotates 360° and supports a touchscreen. I used it for web browsing, etc., and there were no particular problems with its operation. - Brand: HP - Model Name: Envy x360 13-ag0010au - Color: Dark Gray Includes AC adapter, battery cable, and stylus pen. Office is not included. This model cannot be upgraded to Windows 11 (requirements not met). The non-slip pads on the bottom are peeling off (see image 4). Please purchase only if you understand the above. Please check the following HP link for detailed specifications. https://jp.ext.hp.com/content/dam/jp-ext-hp-com/jp/ja/ec/lib/products/portables/personal/spec_pdf/envy_x360_13_ag000_d.pdf