UGREEN Ergonomic Wireless Vertical Mouse, Bluetooth & 2.4GHz , Rechargeable 57 Ergonomic, 3-Device Connectivity, USB-C Charging, 4000 DPI Smooth Tracking, 5-Button, Quiet Click, for Laptop/PC/Mac

57 Degrees for a Straight Wrist: The vertical body holds your forearm, wrist and palm in a natural handshake position instead of a flat twist, easing the wrist ache a standard mouse builds up by the end of a working day Connect Up to 3 Devices: Bluetooth 5.4 plus a 2.4G USB-A receiver keep laptop, desktop and tablet paired at once, so you switch with a tap instead of re-pairing. Works with Windows 11/10/8.1/7, macOS 10.15+ and iPadOS 14+ USB-C Rechargeable, Full in 2 Hours: A 500mAh included battery tops up with the included USB-A to USB-C charging cable, so there are no AA cells to swap - and it keeps working while it charges 4000 DPI Tracking on Real Desks: The 4000 DPI sensor was tested on dark cloth mouse pads, plain paper, laminate, marble, metal pads and wooden desks, so the cursor keeps up on the surfaces you actually work on. (Note: Not suitable for glass surfaces.) Back and Forward Under Your Thumb: The thumb-side buttons page through web pages and documents without a trip to the menu - instant on Windows, while on macOS they switch apps instead (fullscreen required). (Note: Middle-click is unavailable on macOS, Linux and iOS)