What does this button do? - The Xenyx 502 Mixing Board - GM Radio Rob
BEHRINGER Xenyx 502 Mixer Demo - YouTube
Behringer XENYX 502 5-Channel Audio Mixer and Platinum Bundle w/ Stereo Headphones, Home Recording for Musicians for Dummies, 5X Cables, and Fibertique Cloth" - Walmart.com
Behringer | Product | Q802USB
User manual Behringer Xenyx 502 (English - 14 pages)
BEHRINGER XENYX 802 Digital Mixer w/Power Supply and Manual LIKENEW 689076750370 | eBay