EC Technology® Wireless Folding Bluetooth Keyboard with Wireless in the ultra portable design Portable with Bi-Fold with QWERTY keyboard layout, and built-in polymer battery Keyboard for iOS Android Windows Tablet PC Smartphone and so on. (Electronics)
Video at Amazon.com View I use already very common for some years mobile, small Bluetooth keyboards, mostly when traveling and on the road, when the writing of long texts on the touch screen and a finger on tablet and smartphone seems too time consum