my wife have fit the earplug to she ear and it really seem to fit she well . if she ear would have be very different , they still would have fit just fine as there be plenty of optional size include . the length and strength of the cord be bonus because she use the elliptical machine and the treadmill at the gym regularly , so she do not have to be right on top of the earphone jack for it to reach . that be a small review , but she really like the earphone . I 'll have to get she to give a more in depth review .