Logitech claims the G604 Lightspeed gets 240 hours of life in its high-performance mode and 5.5 months in Bluetooth mode. The USB receiver tucks conveniently away in a compartment in the rear of the mouse, where the single AA battery also goes. By contrast, Bluetooth connections support 88Hz to 133Hz polling rates. That’s gaming grade performance when paired with the Lightspeed dongle supporting a 1,000Hz polling rate. The simple aesthetic obscures the fact that this is a proper gaming mouse with a sensor that goes from 100 to 16,000DPI while handling accelerations more than 40Gs and max speeds more than 400 inches-per-second. Despite the lack of grippy materials, the curvature of the thumb section offers a solid hold, making it easy to pick up and move around. It has a two-tone, black design, with a minimal soft-touch coating along its mid-section. The design is much sleeker than its predecessors. The mouse connects via a small USB receiver for full performance, but it also supports Bluetooth connections. There’s a power switch on the bottom of the mouse, and a wireless pairing button on the top.

In case you weren’t counting, that 15 programmable controls. To the left of the primary mouse button are two more buttons, which default as DPI controls. The wheel also features middle, left, and right clicks. It has the same split triggers for the right and left mouse buttons, but has upgraded to a metal, notched scroll wheel with a physical toggle that can let the hefty wheel spin freely. Design and FeaturesThe Logitech G604 Lightspeed carries over the basic design of the G602, with a swept out thumb rest and six programmable thumb buttons in two rows.

Logitech g502 lightspeed button mapping