Luminous characteristics: LED color backlight, more cool at night. The keyboard backlight function is controlled as follows:FN+ESC button for light switching off function. Can be configured into different kinds of language versionsaccording to customer needs. The keyboard supports running on Win 2000, Win XP, Win ME, Vista, Win7, Win8, Androed, Linux, Apple and other operating systems. FN combination function:Support multimedia function keys, the operation is as follows:(1). FN+F1 button: music player(2). FN+F2 key: volume decrement(3). FN+F3 button: increased decrement(4). FN+F4 button: mute(5). FN+F5 key: pauseProduct parameters:Name: One-handed gaming keyboardProduct model: V100Product interface: USB 2. 0Press the number of keys: 35 keysProduct line length: 1. 6mOperating voltage : VDD = 3. 3V - 5. 5VWorking current: 100mAProduct net weight: 350gProduct size: 26*18*4cmPackage Weight:415gPackage Size:26*19*4cmPrecautionsIf the keyboard does not work properly, check if the computer's PS/2 or USB. connector is normal or the keyboard cable is brokenAvoid using the mouse and keyboard in an environment with strong sunlight, overheating or severe dust