SANWA Dual Mode (Bluetooth 5.0 + 2.4G Wireless) Ergonomic Trackball Mouse, Optical Rollerball Mice, Programmable Buttons, Adjustable DPI, 5 Buttons, Compatible with MacBook, Windows, macOS, Android

* TRACKBALL COMFORT - Quipped with a 34mm trackball and 5 buttons, you will not need to mouse around to move the cursor as it stays in one place even on your leg. You can also adjust it among 5 resolutions of 800/1000/1600/2000/2400 DPI depending on your needs. A full control of everything is within your fingers. * DUAL MODE (BLUETOOTH 5.0 + 2.4GHZ WIRELESS) - You can switch between 2 devices with 1 mouse by only one click. It fits for Notebook, PC, Laptop, Computer & other devices. *Use on iPadOS 13: Setting-Accessibility-Touch- Assistive Touch-Devices-Bluetooth Devices. * EASY TO PROGRAM - Install the SANWA Trackball Utility onto your computer to configure the Trackball Mouse's buttons. It gives you easy access to assign 5 buttons for several types of functions, such as shortcuts, launch browser, volume up & etc. * ERGONOMIC DESIGN - Places your hand in a natural wrist & arm position for smoother movement and less muscle tension. Comfortable finger rests just fit in the palm of your hand. No driver requi...