The ddrum Studio Class closed-back headphones fill the need drummers have for superior Db attenuation and studio quality fidelity all in an incredibly comfortable design. While other isolation headphones may provide protection from harmful sound levels and the ability for audio playback, the ddrum Studio Class headphones take performance to a new level. These black professional headphones utilize amazingly comfortable ear cushions that house 40mm drivers, producing High Precision Audio. These headphones also provide an incredible 36.7 dB of passive sound isolation. Whatever your professional isolated headphone needs are, the ddrum Studio Class headphones should be your first choice.
 
Product Details:
Type: Dynamic closed type headphone with closed back speakers
Passive Attenuation: 36.7 Db
Frequency Response: 20-20,000 Hz
Fidelity Response: High Precision Audio (HPA)
Drivers: 40 mm, closed back
Impedance: 32 ohm
Sensitivity: 114 dB at 1 KHz 1mW
Cord: Premium detachable 
Rated Input Power: 1000 mW
Weight: 11.5 oz
Red is Right identifier 
Foldable storage
MADE IN THE USA 
1 year warranty