Razer Imperator Ergonomic Laser Gaming Mouse 5600DPI Razer Precision 3.5G Laser Sensor - The Razer Imperator arms gamers with gaming grade precision For absolute freedom of movement, the Razer Imperator is engineered with no drift control The Razer Imperator's right-handed ergonomic form factor maximizes comfort during intense 2 adjustable side buttons delivers optimum reach regardless of palm size or grip style With its upgraded Razer Synapse onboard memory