Hangzhou Yasong Electronic Co., LTD. is a manufacturer who specializes in the production of Warning Light ,Strobe Lights, Electronic sirens and Speakers, Tower Signal Lamp,Car Warning Lamp,Buzzer, Safety & Security Accessories. Certified with Several Design Patent ,CE product standard,and holding the faith of keeping Sincerity and serving customers well,we have earned highly appreciated fame both domestically and abroad. Our company has taken the lead in the same trade relying on strong technical and good after-sales service system.Our company attaches great importance to development of talents and high quality staff to strengthen managerial and technical team .Welcome to cooperate with us !