Introducing Tongmei抯 stereo audio cassette duplicators. Featuring 4 traks,4 channels,8 times normal speed duplication.The TM-120H allows the connection of up to 10 TM-120H units and the simultaneous duplication of as many as 220 tapes. The TM-103/102 has 2 master stations and 3 copy stations.Be fit for productions of smalt lots. The master station speed controls. Specification