Logitech M570 Trackman Wireless Trackball Mouse, 2.4GHz with Unifying USB-Receiver, Scroll Wheel, Programmable Buttons, 18-Month Battery Life, PC / Mac / Laptop : Amazon.co.uk: Computers & Accessories
Logitech Wireless Trackball M570 user manual (English - 2 pages)
My everyday rider: the Logitech M570. Though it works well and travels easy, it hardly lasts me a year without the ball chipping or something else breaking. Any advice for better mouse-care,
M570 Button Switch Fault Problem / Fix / How NOT to do it! - YouTube