Four USB Type-C ports allow simultaneous control across multiple computers. Synchronizes music playback on up to four computers at once. Connects via USB Type-A cable or dual USB Type-C cable for versatile connectivity. Knob outputs synchronous digital signals for precise control. Compatible with various commonly used player software and video software that supports shortcut operations. This USB music control keyboard is designed for seamless integration with multiple computers, enabling users to synchronize music playback effortlessly. With its four USB Type-C ports, it offers flexibility in connectivity, allowing for easy connection using either a USB Type-A cable or a dual USB Type-C cable. The knob provides synchronous digital signal output, ensuring accurate control over music playback. Additionally, it supports a wide range of player software and video applications, making it a versatile tool for musicians and content creators alike. Color: Black Material: plastic Package Contents: 1*Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.