Complex sentence: Having now established themselves in the MIDI interface and audio interface product categories, Midiman entered the MIDI keyboard controller market in 2002 with the introduction of the portable 25-key Oxygen8.
Split into simpler sentences: Having now established themselves in the MIDI interface and audio interface product categories, Midiman entered the MIDI keyboard controller market. In 2002 with the introduction of the portable 25-key Oxygen8.