Elkon pocket worn model no-EL-93 hearing aid, it is best suitable for mild to severe hearing loss up to 80 dBHL. It covers 1 year warranty as per warranty terms and conditions. it provides soft, Natural and noiseless sound. Gain Range 60 dBHL. Out-Put sound Level- 132 dBHL. It has volume control and N, H, O setting (N-Normal, H-High Frequency Gain, O- switch Off). easy to use for old age person.