"Powerful sound with Extra Bass System (XBS) Canal type headsets for mobile phones (Compatible with iPhone, Blackberry, Android) In line microphone and single button remote for answer/end call ErgoFit Plus Design for ultimate comfort and fit 3 pairs of soft earpads included(S/M/L) Driver Unit: 8.8mm Impedance: 16 ? Sensitivity: 95 dB/mW (at 1k Hz) Frequency Response: 20 Hz - 20 kHz Cord length: 1.2m"

Extra Bass System (XBS) ErgoFit Plus Design for ultimate comfort and fit3 pairs of soft earpads included(S/M/L) Driver Unit: 8.8mm Impedance: 16? Sensitivity: 95 dB/mW (at 1k Hz) Frequency Response: 20 Hz - 20 kHzCord length: 1.2m