Sennheiser PX200- Mini Headphones

Features:
Dynamic stereo mini headphones
Great for travel and outdoor use with mobile sources such as CD, MD or MP3 players
Fold and flip, registered design allows the ear cups to be turned through 90° and fold closed (headphones will lock in open and closed positions)
1.4 m Kevlar-reinforced OFC copper cable with 3.5 mm stereo jack plug
Fits into the shirt pocket, rugged transport case with cord take-up (145 x 75 x 27 mm)
Ideal for use in coaches, trains etc., soft ring ear pads with improved fit & closed ear cups ensure excellent passive attenuation of ambient noise (–15 to –25 dB for frequencies above 1,200 Hz)
For all types of modern music, detailed sound reproduction with a slight emphasis on bass
High-resolution sound due to Sennheiser “Duofol” diaphragms with spiral embossing
Strong Neodymium magnets for extremely low distortion
High efficiency and powerful reproduction
Adaptive baffle damping (patent pending)
Bass tube for powerful, punchy bass
Lightweight, only 60 g without cable
Comfortable, headband with split padding
Rugged and durable, robust steel headband with metal joints, steel-reinforced headband ends, connection to the ear cups tested for durability
2-year guarantee

Technical Data:
Nominal impedance:  32 Ohms
Connector: 3.5 mm stereo jack plug
Transducer principle (Headphones): Dynamic, closed
Ear coupling: Supra-aural
Cable length: 1.4 m
Weight without cable: 60 g
Frequency response (headphones): 10 - 21000 Hz
Sound pressure level (SPL): 115 dB
THD: total harmonic distortion: 0.1 %