The 3 knobs can be used to set the functions of zoom in and zoom out, song ing, and control. The single-hand mechanical keyd is simple to operate and easy to carry. You don't need to bother with the cumbersome installation process when using our products, our keypads don't need to install drivers to start using them, so you can start your own games at any time, anywhere. The keyd is suitable for office, games, media, industrial control, laboratories, production line testing, and other fields, and is a good helper for designers, video editors, and many other types of users.

Specifications:
Color: Black, White (Optional)
Material: ABS
Battery: 200mAh
Item Size: 13.5 * 11.3 * 7.2cm/5.31 * 4.45 * 2.83in
Item Weight: 216g/7.62oz
Package Size: 15 * 13 * 5cm/5.91 * 5.12 * 1.97in
Package Weight: 288g/10.16oz

Packing List:
1*Keyd
1*USB Cable
1*User Manual