Sony Black Fashion Earbud Headphones

Super-light in-the-ear design
High quality 13.5mm driver units
High power neodymium magnet to reproduce powerful bass sound
Open air, dynamic
Cord length - 47-1/4"
Driver unit - 13.5 mm, dome type (CCAW)
Frequency response - 18 - 22,000 Hz
Impedance - 16 ohms at 1 kHz
Sensitivity (db) - 104 dB/mW