Sennheiser PX 100 Headphones for iPhone and iPod Black

Features
Dynamic stereo mini headphones
Connector is compatible with both iPhone and iPod
Foldable design lets you turn the ear cups and fold the headphones closed (headphones will lock in open and closed positions)
Excellent sound quality for mobile audio sources
High-resolution sound from Sennheiser "Duofol" diaphragms with spiral embossing
Strong Neodymium magnets for extremely low distortion
Balanced and detailed sound image for all types of music
Crisp and fast bass response due to system "twin damping" with 80ppi polyurethane and special perforated elements
Lightweight comfort includes headband with split padding
Earcup connections to headband tested for durability
Specifications
Nominal impedance: 32 Ohm
Frequency response: 15Hz to 27kHz
Maximum sound pressure level (SPL): 114 dB
Ear coupling: Supra-aural
Transducer principle: Dynamic, open
Audio connector: 3.5 mm jack plug
Carrying case dimensions: 5.7 x 2.95 x 1.1 in./145.0 x 75.0 x 27.0 mm
Weight (without cable): Approx. 2.12 oz./60.0 g
Cable length: 4.59 ft./1.4 m
In the box
PX 100 headphones
Carrying case with cord take-up