Sold with warranty. 

The TG33 sound module is a slightly enhanced key-less version of the SY22. It is a digital synthesizer that employs frequency modulation (FM) synthesis combined with low-fi (12-bit) AWM ROM samples. However, this machine is not low quality (especially for the electronica-oriented musician). Its preset sounds are a bit thin, however using the joystick controller you can manipulate and combine the 12-bit samples with the any of the 256 FM vector voices.