K271 Studio

Headphones weight without cable 240 g
Sensitivity 91, 104* (dB/mW, dB/V*)
Audio bandwidth 16-28 Hz to kHz
Max. input power 200 mW
Rated impedance 55 ohms
Convertible jack plug (1/8" to 1/4")
Replaceable ear pads
Patented self-adjusting headband
Automatic on/off switch
Unbreakable metal arches
99.99% oxygen-free cable, 3m length
Single-sided cable
Hard gold-plated jack plug and contacts
Plug-in cable on headphones (mini-XLR connector)
Patented Varimotion diaphragms
Closed-back, dynamic headphones
NdFe magnets