loudhailers

use a loudhailer to address the crowd.

用电子喇叭向人群讲话。

compared with analog power amplifier, digital amplifier has many advantages, such as hi-fi, high efficiency, good match between amplifier and loudhailer, easy update, convenient debugging and so on.

数字功放产品相对模拟功放有很多的优点：高效率、保真度较好、功放和扬声器的匹配好、升级换代容易、生产调试方便等，且与未来的全数字式音频广播、高清晰度电视的发展趋势相匹配。

the colonel, using a loudhailer, tried to reassure the residents.

上校用手提扩音器传话，竭力要想让居民放心。

guangzhou chuanteng electronic technology co., ltd is a new enterprise specialized in designing, researching, producing, and selling high-quality vibration loudhailer.

广州市川腾电子科技有限公司是一家致力于设计、研发、生产、销售高品质振动扬声器的新型企业。

even the normally ubiquitous store workers with loudhailers are absent.

甚至正常情况下到处可见的拿着大喇叭的商店工作人员也不见了。