1,Portable 2,Easy to use 3,Design for iPad,Tablet PC 4.Ultra slim,7mm Bluetooth 2.0Design for iPhone/iPad/iPod or design for Windows XP /Vista/7, MAC, Windows mobile,Andriod 3.0 above,Compatible with Smart phone /iphone 4 etc if need)FCC/CE/REACH/RoHS cert.English/France/Japanese/Spainese/Germany/Italian/Russian etcBroadcom chipset