bluetooth keyboard case 1),Support computer based on windows/XP/vista/MAC/IPAD ... 3),Built-in Li-ion battery Item No.: FBK3bluetooth keyboard caseFeature:Keys layout83keysWorking wayBluetooth wirelessCharacteristicsABSFunction CharacteristicsSupporting PC,Mobilephoneand IPADO/S ... elastic siliconeColour matchingOptionalUSB ChargingYesCertificateFCC,CE,ROHS,SRRCsize: 255*133*9MM bluetooth keyboard case