How about this? This is not a simple 2.4GHz Wireless Optical Mouse. It features the "Folder Encryption" function that protects your confidential data on PC easily. Without the USB dongle and wireless mouse, the encrypted folder will not be decrypted by other ways. It is especially good for the laptop/netbook user as the notebook they carry around may full of corporate secret data or private data. If the notebook was stolen or left unattended, don't worry about data security, as they are encrypted! Of course, basic mouse functions like forward & backward button, Scroll-wheel and the DPI switching button is embedded.