The Sensei Wireless is SteelSeries' innovative ambidextrous premium laser mouse designed for the engaged gamer who values trusted Sensei performance and outstanding beauty. Delivering freedom from wires unparalleled performance maximum customization and a stand-out-from-the-crowd look this mouse shows that sometimes beauty is more than skin deep. Max. configurable battery life 20 hrs continuous play; Exact features: Aim Accel Lift Snapping; Configurable - frame rate to 12000 FPS CPI to 8200; 1ms customizable response time - no lag; Illuminated aluminum charging base; Aluminum accent w/ rubberized soft touch; 8 programmable* buttons (incl. CPI).