Introducing Phonak Bolero™ B-PR Phonak Bolero™ B-PR, the powerful rechargeable hearing aid that is all about simplifying your life. Combining superior hearing performance with convenience, Bolero B-PR is a hearing aid that raises the bar. The Phonak Bolero B PR B70 has water resistant coating, telecoil, push button, ip rating (liquid), ip rating (solid), rechargeable batteries, volume control, directionality, spatial noise cancellation, adaptive adjustments, clarity volume control, phone in stereo, frequency lowering, preference adaptation, ear simulation, adjustment bands, feedback suppression, noise reduction, wind noise reduction, sudden loud noise reduction, adjustment synchronization, occlusion reduction, tinnitus relief, automatic acclimatization, automatic phone program, environmental adaptation, and listening programs. More features are available in higher technology levels: Phonak Bolero B PR B90. Fewer features are available in lower technology levels: Phonak Bolero B PR B50 and Phonak Bolero B PR B30