The EX-29 Extreme Isolation Headphones from Direct Sound provide great sound quality in a comfortable design that blocks out a large amount of external noise. Designed in a similar fashion to noise-isolating earmuffs, these heavy-duty headphones use custom speaker assemblies designed to protect your eardrums. The speakers reside inside closed-back earcups with thick padding that effectively reduce external noise by up to 29dB. Ideal for use by live mixers who need to block out monitor speakers, or by drummers who need to be able to hear the mix without setting their volume at an unreasonably high level, the EX-29 is a perfect professional tool. You can even use them as critical mixing headphones during post-production. A long cable is provided for plenty of slack. The 3.5mm mini plug and gold-plated 1/4″ adapter ensure that you’ll be able to listen to any consumer or professional-grade audio device. Type: Dynamic closed back speaker within a Closed Back Isolation Chamber. ;Frequency Response: 20 – 20,000 hz ;Drivers: 40 mm super high fidelity ;Impedance: 32 ohms ;Sensitivity: 114db at 1KHZ 1mW ;Cord: 9 feet ;Plug: stereo 3.5mm with screw-on type gold plated 1/4″ adapter ;Rated Input Power: 500mW ;Maximum Input Power: max 1W ;Weight: 11.5 oz.