Civetta Professional 2.4G Optical Ergonomic Smart Wireless Gaming Silent Click Mouse Mice for PC Laptop Mac Notebook with DPI Switch Nano Receiver 2400 DPI, 3 Adjustment Levels(Pink) Powered by 1xAA battery (not included), please recognize Novias brand,otherwise we cannot guarantee the quality, mouse pad free gift(sent separately) 2.4G wireless transmission, support 10m long distance transmission with stability and efficiency without delay Plug in nano receiver, 800/1200/2400 DPI, 3 adjustment levels Smooth and silent click rubberized grip ergonomic design 2.4GHz wireless USB wheel optical mouse Perfect for home,office or bussiness trip, ideal for PC and Laptop use