ELECOM Wireless Mouse E-XG Series Model Number: M-XGM10DBBK/EC Color: Gunmetal Used once. The battery and instruction manual will be included for shipping. (The battery sheet in the mouse has been removed, so please purchase only if this is acceptable.) 【 Specifications 】 ■ Interface: USB ■ Connector Type: USB (A) Male ■ Compatible Devices: Windows OS and macOS devices equipped with a USB port ■ Supported OS: Windows 11/10 S/10/RT8.1/8.1/7/Vista, macOS Sonoma 14/macOS Ventura 13/macOS Monterey 12/macOS Big Sur 11, Chrome OS * Updates to each OS and installation of service packs may be required. ■ Number of Buttons: 5 * Including the wheel button ■ Number of Wheels: 1 ■ Receiver Storage: Yes ■ Continuous Operation Time: Approximately 370 hours ■ Continuous Standby Time: Approximately 1041 days ■ Estimated Battery Life: Approximately 722 days ■ Power Supply (Main Unit): 1 AA alkaline battery, 1 AA manganese battery, or 1 AA nickel-metal hydride battery ■ Rated Voltage (Main Unit): 1.5V ■ Color: Black ■ External Dimensions (Mouse Body): Width 73.8 x Depth 109.6 x Height 40.8 mm ■ Size Category: M size ■ Weight (Mouse Body): Approximately 75g * Excluding battery ■ External Dimensions (Receiver): Width 15.0 x Depth 18.0 x Height 6.0 mm ■ Weight (Receiver): Approximately 2g ■ Included Accessories: 1 AA alkaline battery for operation check, 1 user's manual ■ Warranty Period: 6 months