Cheapest Factory 5 inch Octa-core 1.4G/1.8G Public Safety traffic coal mine Rail

1.CPU: Qualcomm MSM8953 Octa-core 2.0GHz; 2.Operation System: Android 8.1, 3.Display: 5 inch Capacitive Multi-touch screen, IPS 1920*1080Pixels. 4.Public 4G LTE Networks: GSM: B5/B8/B3/B2=850/900/1800/1900Mhz, 3G WCDMA: B1/B2/B8/B5=2100/1900/900/850MHZ; 3G TD-SCDMA: B34/B39=2000/1900Mhz;CDMA2000:BC0 800Mhz; TDD-LTE: B38/B39/B40/B41=2600/1900/2300/2500MHZ; FDD LTE: B1/B3/B7/B20=2100/1800/2600/800MHZ; 5.Two Cameras: Front-facing 8.0M camera, Rear-Facing 16.0M cmos Camera; 6.Memory & Storage: 4G ram + 64G ROM,Micro SD Card slot support max 128G TF card; 7.Wireless network:802.11 a/b/g/n 2.4G+5Ghz and Blutooth:V4.0; 8.GPS: Support GPS+Beidou or GPS + Glonass; 9.Battery: built-in 3.8V/6000mAh polymer Lithium Battery; 10.Rugged Durability: Waterproof and dustproof rate:IP68; Ruggedness:comply with MIL-STD-810G. 11.NFC function: Frequency is 13.56MHZ. 12.SOS function: support. 13.Sensors: acceleration,geomagnetism,light,Proximity,gyroscopes,compasses, barometers, etc.; 14.DMR Waikie-Talkie and PTT Function: operating frequency range: U-range 400-470MHZ or V-Range 136-174Mhz;Intercome power is 4W, the intercom distance reach max 3.0-5.0KMs; 15.External Interface port:1*M6 port support external camara (720P or 1080P), 1*pogo-pin port support docking station; 16.Fingerprint: support unlock; 17.Private networks: 1.4G/1.8Ghz or 400Mhz or 600Mhz,choose one band; 18.Optional Accessories: Docking station (>=500pcs),external camera 720P or 1080P,are optional; 19.Dimension: 56*74.5*20.9mm.