RAPOO V300SE Wired/2.4GHz Wireless Gaming Mouse -BLACK -Ooptical -50-26000 DPI 73g lightweight design V+ Wireless gaming technology C+click Separate Key Pre-Calibrated technology Wired and 2.4 GHz wireless modes PAW3311 Game optical engine, Accurate navigation Ergonomic design with 10 programmable buttons Onboard memory, save and play Wireless charging module/Contact charging module expansion bay