Here's some actual specs since none were listed:Type In-CanalSealing SealedNoise-canceling PassiveSensitivity 97 dB SPL per 1 mWImpedance 18 ohmsMaximum Output 110 dB SPLWeight 0.6 ozThese ear-buds excel in one area where most fail and that is very deep, rich bass. Whether that justifies the total cost will vary from person to person I think. Personally a good bass to me defines the difference between ok and great.