- 40mm Mylar/Titanium-Plated Drivers
- Dynamic, Closed-Back Earcups
- S-Logic Plus Natural Surround Sound
- MU Metal Shielding
- Extended Frequency Range: 6 Hz to 42 kHz
- Straight Detachable Cable & 1/4" Adapter
- Second Pair of Earpads Included
- Hard-Shell Transport Case
- Ultrasone PRO 900i Closed-Back Professional Reference Headphones
- Detachable 4.9' Ultrasoft Straight Cable with 3.5mm Stereo Jack
- Gold-plated 3.5mm to 1/4" Screw Adapter
- Second Pair of Earpads
- Hard-Shell Transport Case
- Limited 1-Year Warranty