Price significantly reduced. Further reduced for this weekend only. This is the DER MASK and the DER OTO manual used when updating the OTO Machines Biscuit to DER OTO. The DER MASK is magnetic. Brand new, unused. The OTO Machines Biscuit itself is extremely rare, but I've never seen this DER MASK on the market or in the used market. It's currently difficult to obtain. Please refrain from purchasing if you are overly concerned about minor imperfections due to storage by a private individual. Immediate purchase is welcome. Daft Punk Sigur Ros Trent Reznor Shinichi Osawa France Bitcrusher Synthesizer Effects unit Bass machine Drum machine Sampler