For my particular situation the device is what I need. I have a cochlear implant and hearing aid. My major hearing input is through the hearing aid with some clarity coming from the implant. Using both t coils allows me to understand the majority of telephone voices, tv broadcasts and computer sound.The unit failed after about two weeks, the seller is still in the processs of returning a functioning unit (about 15 days). I bought another one from another vendor in the meantime and it appears to be functioning properly.