The HD75 app allows users of Sound World Solutions' HD75 Bluetooth Series hearing aid products to personalize their settings and control the device via Bluetooth link from their smartphone.

During the first run of the app, an automated program will walk you through the steps in tailoring the performance of the listening device to your individual preferences.

The "Home" tab allows you to select two additional environmental settings designed to optimize the performance of the listening device in specific situations.

Restaurant Setting emphasizes the directional microphone to focus on sounds coming from in front of you and provide rejection of unwanted sounds in noisy environments. Entertainment Setting provides increased low frequency response for a more natural, balanced sound at musical or theatrical events.

The app also provides an "Equalizer" tab to adjust individual settings for treble, mid, and bass frequencies for a truly customized user experience. You can also adjust the volume, similar to the volume button on the listening device.

Finally, the "Tools" tab gives you the ability to change the language of the voice prompts in the HD75. You can also access the User Guide for the HD75 app from the "Tools" tab.