Audiological Benefit and Quality of Life With Two Bone Conduction Systems: ADHEAR vs. Contact Mini

The primary objective of this study is to show, that the ADHEAR will be worn \~75%(\~11 to 15 hours per day) of the waking hours, whereas the Contact Mini will be worn \~ 50% (\~5 - 8 hours per day) of the waking hours (p\<0.05). The authors expect this difference due to increased wearing comfort, reduced/no pressure to the skin of the ADHEAR. The primary objective will be assessed with the diary patients are asked to use. Audiologic testing will consist of free field audiometry, Freiburger monosyllables test and Oldenburg sentence test. All tests will be performed with and without the devices. Quality of life and hearing related questionnaires will consist of the AQoL-8D and the SSQ12.