Mdhpklaur With Freestyler's transmit data. Support USB1.0 and USB2.0 It supports hot plugging. Any plugging or unplugging of USB cable during software operation will not affect the light effect program being played. The first time you use it, you need to install a hardware driver. With photoelectric isolation protection design, it is very safe to use without damaging computer hardware and lighting equipment. There is a simple control software. If the simple control software can not meet the requirements of the parent, we also provide development package to facilitate the development of control software twice and the development of software with personal company characteristics. The music rhythm can trigger the light effect, and the music can be synchronized. Material: Metal Plastic colour: Black Package Contents: 1 x USB-DMX 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.