A4 Tech NB90 battery-free wireless Optical Mouse

A4 Tech’s NB90 battery-free wireless optical mouse could be one of the wisest investment’s you’ll ever make in your life. It utilizes electromagnetic induction technology to transfer power to the mouse via the mousepad, and RFID technology keeps mouse movement precise and accurate. For $49.99, you get an environmentally friendly mouse that works and acts equally well compared to its more illustrious and expensive counterparts. (features below)

[Via Krunker]

• Wireless connectivity
• No need for a battery of course – works in conjunction with the mouse pad to transfer power to the mouse using Electromagnetic Induction Technology
• 2nd Side wheel for added functionality
• Office Jump Switch – set specific actions for Microsoft Office functions