- Sennheiser on-the-ear collapsible active noise cancelling headphone with carrying pouch
- Fold and flip: registered design allows the ear cups to be turned through 90 degrees and fold the headphones closed (headphones will lock in open and closed positions)
- For transport: supplied with soft belt pouch with extra pocket (185 x 105 x 40 mm)
- 1.8 M Kevlar-reinforced OFC copper cable with 3.5 mm jack plug, delivered with an adaptor to 6.3 mm
- (1/4") Stereo and 3.5 mm double mono (for airline audio)
- Ideal for aircraft and other environments with engine noise: the switchable NoiseGard active noise compensation attenuates frequencies below 1,000 Hz by up to -15 dB
- High-resolution sound due to Sennheiser "Duofol" diaphragms with spiral embossing
- Bass tube for powerful, punchy bass
- Requires 2 AAA batteries for NoiseGard operation
- Cable length: 5.9 ft
- Frequency response (headphones): 10
- 21,000 Hz
- Jack plug: 3.5 mm stereo
- Nominal impedance: 300 Ohms
- Sound pressure level (SPL): 106 dB
- Total harmonic distortion (THD): 0.1%SENPXC250