CE/FCC-YDFV2000(SD9004D)                                                                 CE/FCC YDFV1000(SD1000V1)

                        CE YDHV3000(SD9008D)                                                     CE/FCC-YDFV4000(SD4000V1)

                    CE/FCC  YDFV2000(SD2000V1)                                                    CE/FCC-YDSR1640C(SD9016SC)

                             CE/FCC-YDSR1640(SD9016HC)