市场上供应的盒式收录机,按其功能大体可分四种类型、单录放机、单声道收录两用机、双声道立体声收录机和袖珍盒式录放机。单录放机。一般只能录音和放音,特点是结构简单,价格便宜,但是由于只有一个扬声器,所以音质较差,主要用于学习。单声道收录两用机,指带有收音机的录放机,除了具有录放音功能外,还可收听广 Cassette tape recorders supplied on the market, according to their functions can be divided into four types, single recorders, mono included dual-use machines, stereo stereo recorders and pocket cassette recorders. Single recorder. Generally only recording and playback, is characterized by simple structure, the price is cheap, but because there is only one speaker, so the sound quality is poor, mainly for learning. Mono included dual-use machine, referring to the radio with VCR, in addition to recording and playback capabilities, but also listen to wide