Brand new, unopened item. 【Product Details】 Color: Black Battery Life: Approximately 12 months (varies depending on usage) Connection Type: Bluetooth 5.0 Weight: Approximately 61g Mouse Buttons: 3 buttons (left click, right click, scroll click) Button Lifespan: Left/Right buttons - up to 3 million clicks; Scroll button - up to 100,000 clicks DPI: Adjustable to 3 levels: 2400, 1600, 800 Mouse Sensor: Blue LED Warranty: CRU Power Consumption: 1.5V/60mA Scrolling: 2-way scrolling (up/down) Brand: ThinkPad Supported OS: Windows 10, Windows 11 Weight (with packaging): Approximately 129g Dimensions (with packaging) (Length x Depth x Height): 110mm(L) x 78mm(D) x 40mm(H) Height: 29mm Length: 107mm Depth: 58mm Connection Type: Wireless (Bluetooth) Power Source: Battery-powered