World’s Smallest Rechargeable Infrared Mouse Micro Traveler 9000R 2.4Ghz technology for anti-interference and power saving mode 1200 dpi infrared sensor technology at a lower power consumption level Built-in 240mAh rechargeable lithium polymer battery Battery life up to four weeks per charge Mini size 68mm great for Ultrabooks Pocket size design -easy to carrry World’s Smallest Rechargeable Infrared Mouse Here’s a super mini mouse from Genius that everyone wants to get their hands on ~ Micro Traveler 9000R. With three vibrant colors to choose from and measuring only 68 mm long, the Micro Traveler 9000R makes a fashion statement for your Ultrabook.   The Micro Traveler 9000R combines a 1200dpi mouse with a built-in 240 mAh rechargeable Li-polymer battery , bringing you the best of worlds. It's so energy efficient, you won't even have to think about replacing the batteries.   With the Stick-N-Go mount design, you can attach Micro Traveler 9000R to your Ultrabook and bring it with you when meeting with a study group or have an office meeting to attend. And if you’re on the move, and don’t want to keep the pico receiver plugged in, you can store it underneath the mouse.   Micro Traveler 9000R comfortably fits your on-the-go lifestyle and is the ideal companion for your Ultrabook. Choose from three stand-out colors: Pink , Blue or White. GENIUS TRAVELER 9000R GREEN WIRELESS MOUSE (Rechargable)