Denon AH-D1200 Over-Ear Premium Headphones with In-Wire Remote and Microphone (Black) - Walmart.com
Amazon.com: Denon AH-GC25W Premium Wireless Headphones with aptX Bluetooth | Hi-Res Audio Quality | Up to 30 hours of Wireless Use | Designed for Comfort | Battery-saving Auto-Standby Mode | Black : Electronics
Blue Dragon Premium Cable for Denon headphones
Authorized on line Klipsch Dealer. Klipsch Reference Premier In Stock Now! Home Theater Systems, In Wall Speakers & more. Call 1-800-691-6914.
Denon D9200 review: the best portable headphones don't come cheap - The Verge
AH-D1200 - Wired Over-Ear Headphones | Denon - US
User manual Denon AH-GC20 (English - 33 pages)
Denon AH-D9200 | Headphone Reviews and Discussion - Head-Fi.org