Standards and Certifications CE FCC RoHS WEEE Headphones Frequency response: 20 Hz – 20 kHz Impedance: 32 ? Sensitivity: 100 dB SPL Input: 80 mW (maximum) Input connection: 3.5 mm stereo plug Microphone Type: omnidirectional condenser Frequency response: 30 Hz – 15 kHz Sensitivity: -54 +/- 3 dB Impedance: 2.2 k? Output connection: 3.5 mm plug Physical Cable: 2 m (6.5 ft.) Weight: 87.8 g (3.1 oz.) Package Contents Stereo Headset