Abstract: The disclosure relates to a battery charger for one or more hearing devices, comprising: a test sound generator configured to produce testing sound; an input configured to obtain first information regarding a first microphone output of a first hearing device in response to the testing sound and obtain second information regarding a second microphone output in response to the testing sound. A processing unit is configured to detect a clogging of a filter such as a wax filter based at least in part on the first information regarding the first microphone output of the first hearing device, and based at least in part on the second information regarding the second microphone output. An output is configured to provide a signal indicating the clogging of the filter.

Abstract: An electronic device includes: an input configured to electronically obtain first information relating to a request for establishing communication between a fitting device and an end user device, the end user device being configured to configure a hearing device based on fitting data from the fitting device; and a processing unit configured to electronically process the first information, and provide second information for transmission to an AV provider; wherein the processing unit is also configured to obtain a connection information associated with a virtual fitting room from the AV provider, and provide the connection information associated with the virtual fitting room for the fitting device; and wherein the processing unit is also configured to provide the connection information associated with the virtual fitting room for transmission to the end user device.

Abstract: An electronic device includes: an input configured to electronically obtain first information relating to a request for establishing communication between a fitting device and an end user device, the end user device being configured to configure a hearing device based on fitting data from the fitting device; and a processing unit configured to electronically process the first information, and provide second information for transmission to an AV provider; wherein the processing unit is also configured to obtain a connection information associated with a virtual fitting room from the AV provider, and provide the connection information associated with the virtual fitting room for the fitting device; and wherein the processing unit is also configured to provide the connection information associated with the virtual fitting room for transmission to the end user device.

Abstract: The disclosure relates to a battery charger for one or more hearing devices, comprising: a test sound generator configured to produce testing sound; an input configured to obtain first information regarding a first microphone output of a first hearing device in response to the testing sound and obtain second information regarding a second microphone output in response to the testing sound. A processing unit is configured to detect a clogging of a filter such as a wax filter based at least in part on the first information regarding the first microphone output of the first hearing device, and based at least in part on the second information regarding the second microphone output. An output is configured to provide a signal indicating the clogging of the filter.