The AudioCast M5 is a small device that connects to an amplifier and allows you to stream music over Wi-Fi. I have and use it, so I created a program in Hollywood called Audiocast Remote. It acts as a remote control for the device. It supports Play, Stop, Next, Prev, and volume controls. To connect to the device, enter its IP address in the appropriate field. Future versions will allow you to save the IP address to a file. The current version doesn't yet allow you to select the source; you have to do this in a dedicated app on your phone or tablet. You can choose from many services, such as Spotify, VTuner, Deezer, Tidal, Napster, and others. After selecting a service in the phone app, you can further control it using the Audiocast Remote. Download it from my website.

I've updated the archive, which now includes the slimmed-down MiniWood binaries, and added the
streamer's IP address to the configuration file.
I remembered that my Medion Multiroom Loudspeaker MD43354 wireless speaker also worked with the Audiocast app. I tested it with my program, and it works too. It's possible that other DLNA devices will also work with this simple remote. The most important thing is to enter the correct IP address before clicking Play or another button, because if the address is incorrect, the program simply closes. I haven't been able to resolve this error in Hollywood yet.

I managed to add presets for radio stations/podcasts stored in the mobile app. To listen to the radio, you no longer need to launch the app on your phone. Just use the "Amiga". Unfortunately, Spotify can't be launched this way. You still need to use your phone to initiate listening, but after selecting a playlist or album, you can close Spotify on your phone and continue using the program.
The link is the same.