Model: Logitech M280 Comfort Plus.
Design: An asymmetrical, ergonomic design specifically sculpted for right-handed users, featuring a textured rubber grip on the sides for added comfort.
Connectivity: It uses a 2.4 GHz wireless connection via a small USB Nano receiver (indicated by the icon in the top left).
Battery Life: The packaging highlights an 18-month battery life, meaning you won't have to swap out the AA battery very often.