SANOXY USB 2.4Ghz Snap-in Transceiver Wireless Optical Mouse Foldable Folding Arc Wireless Mouse for PC Laptop Computer-WHITE SANOXY Arc Mouse combines the comfort of a desktop mouse and the portability of a notebook mouse. Arc Mouse folds to 60% of its fully expanded size when youre on the go. High Tracking Speed With Advanced Technology, Precise Optical Technology, movement can be detected in near all service, Perfect For Laptop And Notebook Users. 2.4GHz Foldable Wireless Optical Mouse Mice USB Receiver Nano USB Receiver & Ergonomic Design. New generation of low-power saving technolog, providing intelligent power-saving sleep mode and power switch design, make your power endurance, which eliminates the trouble of frequent replacement of battery. Plug and Play, active tracking scanning frequency, automatic connection. Elegant and ergonomic design, convenient and practical. Advanced 2.4Ghz wireless technology, anti-interference ability, virtually no delays or dropped frames, the effective operation distance of 10 meters, up to 1600 dpi professional high-precision optical tracking engine.