Used for about a year. There are some minor stains and scratches (see images 6-7). Requires AA batteries. No box or manual. Will be shipped via Yu-packet Plus. - Ergonomic shape for easy handling wireless mouse. - Symmetrical design suitable for both right and left-handed users. - Scroll wheel ideal for browsing / Tilt the wheel to navigate "forward/back" pages. - Easy connection with the included USB receiver / Connect up to 6 compatible devices with one USB. - [Supported OS] Windows 10, 11 or later, macOS 10.5 or later, Chrome OS