2N LTE Verso combines minimum installation costs with a full-feature set. Using LTE technology means no other cable apart from a power supply is needed, with a benefit of all functionalities such as video communication. The main unit with HD camera can be accompanied by RFID reader, Bluetooth, or Fingerprint reader supporting modules. Main unit w/ or w/out camera can be combined only with 2 or 3 module frames or boxes. Main unit will only occupy one position, the others are free for expansion modules. 1 module frame or box is suitable for expansion modules only.