If you are looking for "Techno" brand equipment (specifically ), the "37" likely refers to European Shoe Size 37 .
is praised for its portability and functionality, reviewers from often compare it to the larger MPC Key 61 RAM and Future-Proofing typically comes with 2GB of RAM, whereas the techno avi 37 best
To help you best, I will assume you meant: If you are looking for "Techno" brand equipment