USB analog volume controller with headphone output. However, it's a junk item. Price further reduced. Please consider. I used this when watching YouTube, etc. on my PC, but when I tried to use it again, no sound came out even when connecting headphones to PHONES. I can barely hear any sound even when the volume is at maximum. I am selling this as a junk item in this condition. The exterior is clean. - Model Name: PC100USB - Brand: Fostex - Connections: USB, RCA, Headphone - Volume Control: Analog knob - Link Indicator: Yes Thank you for viewing.