Notice: 1. User manual and customized software can be requested after purchase 2. Need to use windows system for custom settings 3. Support hot swap 4. can be set and switched freely This is a mini keyboard with custom functions, used in design, stock, office, game, music, media, industrial control, testing and other fields. Support one-key copy and paste wired TyPe-C interface dual mode, no driver required, plug and play Metal knob, one-handed control of music cutting, volume, pause, previous song, next song, zoom in and out, previous page and next page With mouse and delay function Can single key 18 characters, support one key password switch:red switch size:L50mmxW50mmx28mm package 1*keyboard 1*usb cable