Specifications: Material: Plastic Key quantity: 35 keys Transmission mode: Wired USB Key life: 50 million times Operating temperature: 0-40 Operating humidity: 85% Working voltage : 5V±0.5 Working Current: 350mA () Compatible System: For Win 2000/Win XP/Win ME/Vista/Win7/Win8/WIN10 Package list: 1 x one-hand keyboard 1 x key clip 1 x instructions Driver Free?This one-handed gaming keyboard is plug and play, fully compatible with Win10/8/7/Vista/ME/OS X//IBM. Macro Recording Function?When there is no recording content in G1-G6, the default is F1, F2, F3, F4, F5, F6. When there is no recording in G1: Press FN + G1 to enter recording state. When the G1 lamp flashes, you can enter the recording content. After entering FN + G1, the G1 lamp will return to normal mode. Press FN + G1 again to delete the recording and switch to the F1 function. The -G6 recording and erg records are the same as above. ?Erg Ergonomic 35-Key Design?The keyboard adopts 35-key portable design and compact, not only easy to carry but also space-saving. The large wrist and ergonomics ensure a relaxed gaming experience. Built-in 9 Backlight Colors?The gaming keyboard has built-in 9 backlight colors and 5 backlight modes. Press FN + 5 to change the backlight color and press FN + Tab to toggle the backlight mode. Gaming Keyboard Experience?The one-handed keyboard uses a new blue switch, which is reinforced at the joint to make the key more stable and durable. Mechanical keys offer medium resistance, audible clicks, and clear, precise tactile feedback for gaming performance.