[Latest cutting edge tech] : Universal 4G 3G LTE 300Mbps WiFi Router with 1 LAN Port,ideal to connect DVR CCTV and access remotely
[Plug a SIM card and play] ? No configurations needed, compatibility of SIM cards in 100+ countries are assured by years of field tests
[Two detachable advanced LTE 4G antennas] ? Enjoy stable and efficient connections to every device thanks to the two external antennas.
[Wi-Fi router mode] ? Plug an Ethernet cable into the LAN/WAN port for flexible access as a backup option if you can't get a 4G connection.
[Wide Compatibility] - Support all mainstream ISP, including Jio, Airtel,Vodafone, BSNL, ACT, MTNL, Hathway, You broadband, GTPL, etc. The actual accessibility may still vary from the area

chip set - ASR1803 , no heat problem , no signal drop problem.