... plastic , broadcom bluetooth chip.2) X-construct design for the keys.No noise while typing3) Foldable, space ... and portable5) High durability: five million life cycles for keys6) PC system: windows/XP/vista/MAC7) Simple ... work.8). Moveable keyboard can be convenient for you adjust the ipad view angles to wide ... , server 2003, xp, vista and MAC.Brand: for the ISM brand of 2.4-2.4835GHzReceiving sensitivity: ...