Our Advantages: 1.more than 99% sorting accuracy 2.more than 10:1 rejection rate(bad:good) 3.on-site expert installation and free training 4.ONE YEAR GUARANTEE without operation time limit etc. More information pls email: smarthonesty at yahoo.com Perfect Product Performance is Guaranteed by World-class Key Accessories: More Details: 1.DSP+FPGA Contron Chips: From American TI, processing much more faster 2.Ejecter: From Italy Metrix, more stable and long service life 3.CCD Camera: From American PERKINELMER, high resolution, high sensitivity, low noise 4.Touch Sreen: From Japan SHARP,more clear and long service life