BTXETUEL SayoDevice OSU O3C Rapid Trigger Hall Switches Magnetic Linear Switches Keyboard with Knob and Screen,Copy Paste,Shotcut,Macro Hotswap Mini Keypad.

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.

^^ NOTICESometimes, the keyboard needs to do "CALIBRATION" ( The steps are shown in the figure ) before use for the first time or after firmware upgrade.