Specifications: Function: Folding Wireless Bluetooth Keyboard Appearance: With cool and fashional design, QWERTY keyboard. Can be fold into a mini laptop size which fits into almost any bag while being well-protected and resistant to shocks, convenient to take and use. Compatibility: Iphone OS 4.0+, iphone, ipad, Nokia Symbian S60 and above, Android 2.3, Windows/Mac laptops and computers which support Bluetooth function etc. Ideal for writing text, emails, chatting, web browsing and even gaming. Buletooth Version: Bluetooth 2.0 Wireless maximum distance: up to 10 meters without obstacles OS: Windows 2000, XP, Vista (32-bit) Power Source: Built-in rechargeable lithium battery Keyboard battery parameter: Battery Capacity: 350mA Constant use: About 50 hours Standby: About 400 hours Charging time: About 2.5 hours USB: Mini USB for charging Dimensions: Length: 350 mm Width: 130 mm Color: Black Approved: CE / FCC After sales service: 1 year warranty Accessories: 1 x USB cable 1 x English user manual