Airfoil - This software is from the Rogue Amoeba company, built to run on Mac and Windows platforms. It’s an audio-based software that allows the computers sound to play over a network device. Read more about Airfoil.
Timetaco - Create your own countdowns, as easy as 3, 2, 1
AudioRelay - Listen to your PC audio, use your phone as a mic or stream audio from your phone
Coountdown - 3 2 1 ! Create day counter on menu bar macOS. 🚀
SoundWire - SoundWire does audio mirroring (audio cast). You can use any music player on your PC or laptop like Spotify, YouTube, or iTunes and stream low-latency live sound over WiFi directly to your Android device.
Padbury Clock Screensaver - Minimal screensaver for Mac