HXSJ V100 Universal One-hand 35-Keys Mechanical Blue Axis Seven-color Backlight Wired Gaming Keyboard, Length: 1.6m Light effect mode: 1. Luminous characteristics: LED color backlight, cooler at night. 2. The keyboard backlight function is controlled as follows: The FN + ESC button is used to turn off the light. 3. Can be configured into different kinds of language versions. 4. According to customer needs, keyboard support runs on Win 2000, Win XP, Win ME, Vista, Win7, Win8, Android, Linux, Apple and other operating systems. FN combination function (supports multimedia function keys): 1. FN + F1 button: Music player. 2. FN + F2 button: Volume down. 3. FN + F3 button: Increase the decrement. 4. FN + F4 button: Mute. 5. FN + F5 button: Pause. Parameter: One-handed gaming keyboard 2. Product interface: USB 2.0. 3. Number of buttons: 35 keys. 4. Key life: 20 million times. 5. Product line length: 1.6 meters. 6. Flash ROM: 32 bytes. 7. EEPROM: Built-in 2K bytes. 8. Operating voltage: VDD = 3.3V - 5.5V. 9. Working current: 100mA. 10. Ambient temperature: - 40-85 degrees Celsius. 11. Programming temperature: 0-85 degrees Celsius. 12. Net weight: 350g. 13. Size: 26x18x4cm. 14. Material: metal + ABS. Precautions: 1. If the keyboard does not work properly, check your computer PS2 or USB. The connector may be normal and the keyboard cable is broken. 2. Avoid using the mouse and keyboard in an environment with strong sunlight, excessive heat or severe dust.