In 2010, Mellotron reintroduced the iconic tape-based machine in a compact digital version, the Mellotron M4000D, that retains the authentic sound, look and feel of the original keyboard while adding some significant improvements. It is a 24 bit digital uncompressed audio playback unit with ca 100 Mellotron and Chamberlin sounds built in. Extra cartridges will be available with 100 sounds each. It has a custom built full Mellotron style wood keyboard with depth sensitivity and polyphonic aftertouch out via MIDI. The front panel user inteface has 2 TFT-displays of high quality and are capable of showing pictures of the actual instruments.