Phonak Varionet (Model Sc-D-2)
The Phonak Varionet SC-D-2 is a behind-the-ear hearing aid designed for individuals with moderate to severe hearing losses. The instrument has a directional microphone, adjustable frequency response and gain controls, a telecoil, and a compression circuit with an adaptive recovery time. the unit has a frequency range of 220-7100 Hz with a high-frequency average SSPL-90 of 119 dB SPL, a high-frequency average full-on gain of 59 dB and an equivalent input noise level of 25 dB SPL ( re: ANSI 3.22-1976). Uses a type 675 battery.