Triple-folding foldable bluetooth keyboard * USA Broadcom Bluetooth 3.0 Solution   * Scissors keys, UV silk printing, 69 keys.            * Material: ABS+ Alluminum alloy * Built-in 420mAh lithium battery   * Support Windows, Android, IOS smart phone, Tablet and PC computer. * Foldable size: 130*91*24 mm * Unfold size: 350*130*6mm * Packing box size: 178*116*38MM