The Chinese professional electronic music brand BUBM has launched a special package for the German TRAKTOR KONTROLS4 multifunctional digital controller, which can perfectly protect and carry the S4 controller. It can also carry a laptop with a maximum size of 17 inches. The independent front pocket can hold various types of headphones and DJ playing sound card, U disk, mobile hard disk, and various cables.
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![](https://img.alicdn.com/imgextra/i1/46664255/T22_qsXBBXXXXXXXXX_!!46664255.jpg)
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