Phonak Hearing Aid, produced by the Swiss company Phonak Technical Specifications: The Solana series is characterized as "Advanced" category * Water Resistance (H2O): IP67 rated, meaning it is excellent resistance to dust, water, and sweat, designed for active individuals. * Battery Type: Typically uses a size 13 battery (orange color). * Hearing Loss Degree: Suitable for mild to severe hearing loss. * Smart Technologies: * 16 Channels: This device operates within the Advanced category of Phonak's Spice+ platform, featuring 16 channels for precise sound processing and adjustment to suit the user's hearing loss. Additional Features for this Model: * Water and Dust Resistance: IP67 rated, making it resistant to moisture and sweat. * UltraZoom Advanced Technology: Helps focus on speech in noisy environments. Important Tips Before Purchase or Use: * Programming: Hearing aids do not work simply by wearing them; they must be taken to an audiologist to be programmed according to the user's "audiogram".