The Behringer Neutron Semi Modular Desktop Analog Synthesizer is a powerful keyboard synthesiser that is perfect for musicians looking for a high-quality sound. With its brand name, Behringer, you can be sure that you are buying a product that is built to last. This synthesiser is a great choice for professional musicians, as well as for those who are just starting out.The model number for this synthesiser is 450511, and it is designed specifically for keyboard synthesiser instruments. This is a semi-modular synthesiser, which means that it allows you to create your own sound by patching together various modules. The Neutron is also a desktop synthesiser, which means that it is small and compact enough to fit on your desk or in your studio. Overall, this is a great synthesiser that will help you create amazing sounds.