1.Over 10 years experience instrument manufacturing. 2.OEM&ODM is available. 3.BSCI,ISO9001,CE,ROHS,FCC certificated 4.24 hours online service 5.Full quality control service 6.Main market to North America,south America, Europe, Russia etc. 35 countries. 7.7.1 Year Warranty Period for After-Sale . 8.professional research and development team, with 7-8 new products every year.