O3C OSU SayoDevice KeyboardThis keyboard with 3 Hall magnetic linear switches, 1 knob, 1 screen TYPE-C,USB 2.0 high-speed 8000HZ. Replaceable SwitchesSupports any Hall magnetic Switches, with a simple click for calibration. IPS color ScreenWith 0.96 inch IPS color screen,160*80 Resolution, visible key range and button counting. Custom ScreenThe first line of text on the screen can be customized, such as writing your own ID. Custom KnobThe knob can also be set with any key, such as to scroll through the song list. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!