COOL FM started as a single-channel radio station broadcasting on FM 107.3 in Budapest. It now offers a variety of thematic online radio channels accessible via the internet, covering diverse music genres from pop and rock to rap and funk. The primary COOL FM channel features current hits and new releases, while other channels focus on specific genres or eras, including music from the 80s, 90s, and 2000s, as well as electronic music and film scores.