Thank you for viewing! The following is quoted from the sales site: Logitech Wireless Mouse, Wireless, Thin, Wireless Mouse M557GR Bluetooth 6-button M557 Gray, Domestic Genuine Product Bluetooth mouse ideal for PCs, Macs, and Windows 8 tablets Button customization is possible to suit your needs Equipped with a convenient Windows 8 Start screen button Reliable quality Mouse body size (width x depth x height) mm: 57 x 99 x 34 Supported OS: Windows 7, Windows 8, Mac OS × 10.6.8 or later Sensor method: Laser-grade tracking Operating distance: Approximately 10m* Wireless method: Bluetooth, Resolution: 1000dpi *This item is a beautiful/unused item. We have checked it, but since it is stored at home, there may be minor deterioration that is not noticeable even if it is a new, unused item. Thank you for your understanding. If there is a problem, please contact us via the transaction message before the receipt evaluation. ☆ Immediate purchase is welcome ☆ We plan to ship via Mercari delivery ☆ Please note that the time slots for checking/replying to comments vary depending on the day