【Ergonomic Bluetooth Trackball Mouse】 Stop chasing your mouse around. The trackball stays in one place, just rolling the trackball with your thumb to move the cursor. Reduce muscle strain and let you work all day in comfort. | 【2.4G Wireless & Bluetooth Connection】This trackball mouse wireless connects simply with Bluetooth or the USB receiver. Use with up to 3 Windows or Mac devices. Never worry about drop-offs or lag up to a 33 ft (10m) range. | 【USB C Rechargeable Mouse】The computer mouse with built-in 600mAh lithium battery. Stays powered for 1 months on a full charge(Battery life may vary based on user and computing conditions). Please turn it off if you do not use the mouse for a long time. | 【3 DPI Switch】 3 adjustable DPI level 1000/1600/2400 provides precise and smooth tracking. Great cursor control on any surface. Adjust the cursor speed just to prees the DPI button. | 【Compatibility Requirement】Universally works with Windows, Android, Mac OS PC Laptop Desktop, etc. Bluetooth mode works with Windows / Android / MAC OS system, won’t occupy any USB port. 2.4GHz mode works with laptop, desktop or any device with USB port.