Fangrui Product Details This Is A Mini Keyboard With Custom Functions, Used In Design, Stock, Office, Game, Music, Media, Industrial Control, Testing And Other Fields. Large-capacity Rechargeable Battery With Low Power Consumption, 90 Days Long Standby Time. Support One-key Copy And Paste 2.g Wireless,bt Wireless, 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 Current And Voltage: Dc 5v/1a Interface: Type-c Axle: Outeum Red Switch Colour:black Material:abs 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. Support Bluetooth-compatible 5. Support 2.4g Wireless Conect 6. Three Sets Of Definitions Can Be Set And Switched Freely Package Contents: 1 * Mechanical Keyboard 1 * 2.4g Receiver 1 * Us