This advanced wireless mouse offers superior comfort and functionality in an elegant beautiful design. The main feature of multi-mode wireless connection - via Rapoo\'s reliable 2. 4 GHz wireless transmission, Bluetooth 3. 0 or Bluetooth 4. 0. (Smart) - allows you to connect simultaneously to up to 4 devices and change (pair automatically) among them. With MT750S precise navigation on virtually every surface is possible thanks to the high-performance laser engine and fully adjustable 3200 DPI. To make it even better, MT750S features a rechargeable battery so you can enjoy wireless freedom without having to replace batteries. System Requirement Windows(R) XP/Vista/7/8/10, USB port Package Contents Wireless mouse, Nano USB receiver, USB charging cable, Quick Start Guide Warranty Length 2 Years