Intuoduction

            Changzhou Liangsheng electronics Co., Ltd. that is a china-Taiwan  countries joint venture seted up in May,1991,has registered bankrolls of 2.4million RMB Yuan. It specially  produces LESHENGS loudhailers, which is wide used of telephones, toys, apparatuses, auto-used sound boxes,TV sets and Slap-up combined sound boxes three in-one. YDB45, YDB50, YDB57 inner magnetism thin-type  loudhailders enjoys great prestige both at home and abroad telephone factorys.