Features:
• Sound
Made with 40 mm speaker drivers, CS40's deliver super-deep bass, smooth, undistorted highs, and clear vocals.
• Comfort
Ergonomically designed, CS40's are lightweight and extremely comfortable.
• Compatibility
Compatible with iPhone™, iPod™, BlackBerry®, and any other media device with a 3.5 mm jack.
• Construction
Designed with our famously comfortable AeroFoam ear cushions.
• Foldable Design
CS40's fold up for convenient travel use.
Specifications:
• Driver Unit:40 mm
• Impedance:32 ohms
• Sensitivity:116 dB +/- 3 dB at 1kHz
• Frequency Response:20 Hz to 20 kHz
• Cord Length:1.2 m
• Plug:3.5 mm
I really like these as the foam buds felt really soft on the ears. The bass is better than expected but be warned, having long hair will put you at risk of tangles with the head band (as it slides to fit your head).