Visit Amazon sites : br BlueFinger Cool Black Wireless Keyboard and Mouse Combo Set BlueFinger Customized Mouse Padbr br 24GHz portable nano receiver the USB receiver is in the mouse where puts battery plug and play do not need to install br System requirements WindowsXPVista7 USB ports Adopting strengthen ABS plastic Spill-Resistant Design Multi-media Keyboard controls br The mouse with DPI governor adjustable speed 16001000600 Laser Engraved Key Cap multi-media Keyboard controls br Keyboard size 4413505cm Mouse size 1173cm Lite version interface design can perfect match your workspace br Package contents BlueFinger 24G Wireless Keyboard BlueFinger 24G Wireless Mouse USB nano receiver pre-installed on the underside of the mouse BlueFinger customized mouse pad as gift