Portogram supplies a range of variable speed, CD, tape and MiniDisc audio products designed specifically for the needs of teachers and instructors running group lessons Whether it is a CD, cassette player, MiniDisc, speakers, microphone or accessories — whatever model you choose, all Portogram products are easy to use, give great sound reproduction and many models incorporate our Variable Speed Control Circuitry for even greater control under studio or group conditions Whether it is fitness or dance, more and more teachers, throughout the UK, are now relying on Portogram audio products to help them with their classes