Functions: This 4G HD IP PTZ Dome Camera All-in-one (4G+GPS+WIFI hotspot) have two choices. SW-BK2020B-4G: 1080P 20x Optical Zoom SW-BK2030B-4G: 1080P 30x Optical Zoom Main Features: 1) 1080P HD video, H.264/H.265 video encoding and dual streams. 2) Support 4G wireless network for remote monitoring and main stream & sub-stream are optional. 3) Built-in WIFI: supports WIFI Hotpot. 4) Built-in GPS module for precise localization. 5) Supports SD card storage up to 256G. 6) 360 degrees orientation rotation. 7) Focus fast and accurate,digital wide dynamic, "through the fog" mode optional. 8) Integrated design,high-suction magnet base, fast installation. 9) large capacity lithium battery-powered, working time> 8 hours. 10) Optional: equipped with intercom device to achieve wireless cluster communication.