PositioningGPS (AGPS), BeiDou, accuracy ±5mExpansion slots2Sim slot (dual-SIM, optional), 1 TF slot, 2 PSAM slot (optional)Ingress protectionIP65WirelessWi Fi: 2.4G/5Gdual-band, IEEE 802.11a/b/g/n/ac 2G: GSM/GPRS/Edge (850/900/1800/1900MHz) 3G: WCDMA (850/1900/2100MHz) 4G: TDD-LTE (B38/B39/B40/B41) FDD-LTE (B1/B2/B3/B4/B7/B17/B20) VoLTE/ViLTE: supports Bluetooth: V2.1+EDR, V3.0+HS, V4.1+HSID card readeroffline 2nd-gen ID card readingFace recognitionbuilt-in face algorithm, with SDKScan engineZebra-SE4710/ME5600/ME5800/Honeywell-N3603/NLS-N1/Honeywell-N6703Symbologies1D: Code128, UCC/EAN-128, AIM-128, EAN-8, JAN-8, EAN-3, ISBN/ISSN, UPC-E, UPC-A, Interleave 2/5, ITF-6, ITF-14, Deutsche 14, Deutsche 12, COOP 25, Matrix2/5, Industrial2/5, Standard25, Code39, Codabar/NW7, Code 93, Code 11, Plessey, MSI/Plessey, GS1 Databar 2D: PDF-417, QR Code, Data Matrix, Han Xin codeOptional modules433MHz, IR thermometer, vibration, precise positioningmodule