... detection way,and perfect quality control system. 1st:Prior to being released to produce,all the components are inspected strictly; 2nd: ... ( Black,White,Grey,E,Ghost)3 times QC testing to ensure the goods work perfectly in any environment!Target:Stable ... 2.Terms:1).Quality & price :AAA, SAMPLE order testing, To pursue Long-term business cooperation with Compecitive price2).Warranty:One year,1 years and ...