The Phonak Bolero is a BTE hearing aid similar to the more popular Phonak Audeo B. Why choose the Bolero instead of the Audeo B? The Bolero V hearing aids don't have a separate receiver wire running from behind the ear into the ear canal as the Audeo B hearing aids do. This makes the Bolero V a better choice for people with very oily or sweaty ears, people who work outdoors, or people who want a hearing aid that is slightly less maintenance than the Audeo B. There are other things to consider before choosing the Bolero V hearing aid, which should be discussed with your local hearing provider.