Comes with: (1) USB Sound Card + (1) USB Cable
	
Simply plug into your Mac or PC via USB and start recording, without the need for a bulky power supply
	
It has independent headphone output interface and strong sound pickup ability, support the earplugs or headphone
	
The USB sound card can be used with any common operating system
	
This will solve many issues with macbooks have issue making condenser microphone work on the macbook.