Features: 1.Intelligent Carrying: BT connection, smart portable size. Small and portable, you can carry it with you and put it in your bag 2.Touch Pad 90 Degrees: Touchpad 90 degree flip the world's first feature. Flip touch function, complete functions and high performance 3.Happy Game: Enjoy PC Multi media entertainment at home. Enjoy fun at home, play games and use computers happily 4.Enjoy Life: Share large TV and projector screen. Let you enjoy watching movies on the big screen with a strong sense of experience 5.Extensive Use : Applied to for windows, for OS X, for Linux. Wide range of applications specification:Item Type: Mini Keyboard Material: Plastic Model: RT-UMK-100-BT Product Size: Approx. 151 x 59 x 12.5mm / 5.9 x 2.3 x 0.5in Connection Method: BT Battery Type: Lithium Battery (Shipped with Built In Battery) Battery Capacity: 300mAh Remote Control Distance: Up to Approx. 10m / 11yd Number of Keys: 69Keys Charging Time: 3.5-4 Hours, Full Charge Standby Time: 500-700 Hours System Support: For Windows 2000 , for Xp , for Vista ,for 7 For OS X 10.x or Lower For Linux (for debian 3.1 / for Redhat 9.0 / for Ubuntu 8.10 / for Fedora 7.0) PackageList: 1 xMiniKeyboard 1 x Data Cable 1 x User Manual NoteShipped with Built In Battery