Superior sound quality & connectivity. Direct streaming from iOS & Android phones, Remote Programming, compatible with Thrive Hearing Control App and 2.4GHz Accessories, 8KHz bandwidth, Basic Hearing Reality Sound Enhancement, Dynamic Directionality, Feedback Cancellation, Frequency Lowering, Multiflex Tinnitus Technology (13 channels), Tonal/Voice Indicators, Synchronized Ear-to-Ear Adjustments, Self Check. 2-year worldwide warranty. Style: ITC R / ITE R (Rechargeable), custom-molded in-ear fit. Fitting range: 0-110 dB.