Logitech Ergo M575S Wireless Trackball Mouse $35 + Free Shipping w/ Prime

Logitech Ergo M575S Wireless Trackball Mouse $35 + Free Shipping w/ Prime. Woot! woot.com is offering the Logitech Ergonomic M575S Wireless Trackball Mouse for $39.99 - $5 w/ code ERGOFIVE at checkout. Free Shipping when you log in with your Prime account, otherwise it's a flat $6 ship rate.