FeaturesFits Nucleus 7, Opus 2, MED-EL Sonnet, and AB Naida cochlear implant processorsForm-fitting spandex fits over your hearing instrument, adding comfort & protection from dirt, sweat, moisture, and wind noiseAcoustically transparent – doesn’t interfere with the performance of your deviceOne-year warranty Choosing the Right ModelHearing aids up to 1″: Ear Gear MicroHearing aids 1″ – 1.25″: Ear Gear MiniHearing aids 1.25″ – 2″: Ear Gear OriginalHearing aids 2″ – 3″: Ear Gear FMCochlear BTE processors from Cochlear, Advanced Bionics, and MED-EL: Ear Gear CochlearRondo and Kanso processors: Ear Gear RondoBaha type processors: Ear Gear BahaITE hearing aids: Ear Gear ITE