Acupressure at home. The Medisana MCG 820 acupressure massage cushion does not only provide a three zone massage for your back but also a point-specific massage adjustable for particular spots of your back. The neck massage function is height-adjustable and the neck covering can be taken off in order to wash it. The hook-and-loop fastener makes it possible to fix the cushion onto almost every seat and the wired remote simplifies the choice of programmes.