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1 All-weather design (moisture-proof, heat-resistant, salt-resistant, sulfur-resistant), can be used for a long time in a variety of special environments; 2 High sensitivity, high sound pressure level design, wide frequency response coverage; 3 The sound is clear and pure, easily coping with various background music and voice reinforcement needs; 4 Simple and generous appearance design, which can be integrated with various occasions; 5 weight 2.0/2.9/3.6Kg, equipped with complete installation accessories, making installation easier and quicker; 6 Adhering to Huiwei's consistent Hi-End concept, let music accompany you at any time.