SHENZHEN haoying electronic technology co.,ltd was establish in 2005,which is a company specialized in developing,manufacturing and selling crystal oscillators,quartz crystal,Clock Oscillators,SMD crystal resonators,TCXO,VC-TCXO,VCXO,OCXO,OC-VCXO ceramic resonator and filter,We have advanced testing equipments and dust-free manufacturing environment.also we execute the international standard management sysem ISO9001,RoHS.Those products are applied to Mobil communication,Internet,digital technology,automobile,manufacture,financial,entertainment,WLAN,computer,GPS and so on.Why you choose us:1.All products before sending client,we make 72 hours aging test2.We have 180days warranty3.Factory price4.Offer OEM service and short delivery5.Excellent after sales service, Consider long term co-operation,we will offer the 8D report for all client&＃39;s complaint to solve the problem