The Fanstel ST250 2-Line Amplified Corded Business Speakerphone boasts highly flexible sound settings; incoming voices may be amplified up to 52dB. When the volume is increased, the frequency-specific amplification is added automatically. This level of amplification has been tuned to more effectively restore the perception of many phonemic distinctions common in speech; your colleagues won't even be able to tell that you have a hearing loss. The phone is designed to look like typical business phones.