Logitech MX ERGO Trackball Mouse - 440DPI Bluetooth & Unifying Dual-mode Wireless Optical Mouse Option:MX ERGO S Waterproof rating: IP65

Waterproof rating: IP65

support all desktop computers

and the typing keyboard does not slide

57inch * 20

Charging time: About 3H

Logitech MX ERGO Trackball Mouse - 440DPI Bluetooth & Unifying Dual-mode Wireless Optical Mouse Option:MX ERGO S Waterproof rating: IP65Feature: 1. With adjustable shaft. 2. Has cross computer control capabilities. 3. Change the speed and accuracy of the cursor to achieve one button control and adjust the sensitivity at will. 4. Quick access to shortcuts. 5. The battery can be used for up to 4 months after it is fully charged. 6. 320DPI 440DPI optical tracking technology. 7. Easy to install. Parameters: 1. Battery life: It can be used for up to 4 months after being fully charged (the