Certification:CE, ISO, ROSH, FCC Warranty:12 Months Headphone jack:1/4 inch Distinguish:Ferrous and Non-ferrous Sensitivity:>25cm(for a us 25cents) coil:6.5 x 9 inch Power Supply:4 PCS AA battery Service:Support OEM Modes:All Metal,Jewelry,coin Detected indication:LCD display Show More