Founded in 1990, we specialize in manufacturing sirens,acoustic & photic components since 1997. Located in Cixi city, 350 kilometers from Shanghai and 45 kilometers from Ningbo ports, we enjoy convenient transportation and economic advantages. Meanwhile, our factory covers more than 2,500 square meters. Having accumulated professional production experience for many years, we perform excellently in the line of sirens and constantly make great efforts to gain better product quality and improve production capacity. Successfully developing markets at home and abroad, our factory follows the market trend to provide customers with our utmost sincerity, competitive price and prompt delivery.