HS600-01 professional Air Defense Siren Speaker load with four good quality driver units The PA horn speakers produced by Taixing Minsheng Electronic Co., Ltd. are widely used in universities, primary and secondary schools, hotels, living quarters, shopping malls, supermarkets, parks, factories, outdoor squares, gymnasiums, office buildings, business centers, stations and airports, convention and exhibition centers, tourist attractions and other places. Our company pursues the business philosophy of "achieve customers, adhere to integrity, quality-oriented, pioneering and innovative". We are committed to providing customers with innovative products, services and solutions that meet their needs, creating long-term value and potential growth for customers. As all Air-Raid Sirens have been digitally upgraded, electric sirens have also been eliminated in favor of audible…