The Technology of Today International: Logitech T400 review - the best ambidextrous wireless mouse
Push button not working. Mouse logitech T400 model. Had to press hard for click, sometimes work sometimes don't. How to repair or fix. Push buttons not available in market. : r/AskElectronics
User manual Logitech Zone Touch T400 (English - 132 pages)
Logitech Zone Touch Mouse T400 - Walmart.com
Amazon.com: Logitech T400 Zone Touch Mouse for Windows 8 - Wild Plum : Everything Else