ZARTEK ZA-PT3 : PTT TWO-WAY RADIOThe ZARTEK ZA PT3 : PTT TWO WAY RADIO is a PoC (PTT over Cellular) Two Way Radio. This means it utilizes cellular data (4G GSM) or Wi Fi to provide push to talk communication over a wide area, often with country wide coverage, depending on network availability. Key Features PTT over Cellular (PoC): Connects to an internet network via a data SIM card (4G GSM) or Wi Fi, offering a much wider communication range than traditional license free two way