Novel techniques for hearing enhancement based on a pair of glasses are disclosed. In one embodiment, the glasses include a first lens holder, a second lens holder, a bridge element, a first temple, a second temple, a first speaker, a second speaker, a microphone and at least one electrical component that performs a hearing enhanced function to enhance audio signals from the microphone to be sent to the speakers for the user to hear. At least one electrical component in the glasses is for generating other audio signals by the speakers, with the other audio signals originating from signals other than audio signals captured by the microphone. In another embodiment, some of the electrical components are in a portable device, wired or wirelessly, coupled to the glasses. In yet another embodiment, the glasses function as a headset, with other electrical components in the portable device. In such embodiment, since the glasses can provide a number of different hearing functions, a third party may not be able to tell whether the user is wearing the glasses to have his hearing enhanced, or for hearing other audio signals.