Perixx PERIBOARD-804III Bluetooth Keyboard - Compatible with iOS Windows and Android Smart phone & Tablet - AES 128 Encryption Portable Size 11.46"x5.43"x0.91" (291x138x23mm). Great small size with user friendly layout, easy for you to use it for work, for fun and as your best mobile support. Built-in one Extra USB Hub Support HID (Human Interface Device) and Microsoft, iOS and Android 3.0 and later. Easy to switch different system layout with hot keys. (FN+Q,W,E) One AA battery needed (not included in the package) logitech Microsoft adesso cherry razer 19" rack