Push-to-call, one-click communication Do you think it's just a high-precision data collector? No, G659 integrates the intelligent calling software. With the short cut button on the left side, it can realize the one-button network intercom function. Group intercom, audio and video communication, data transmission, scheduling assistance, message instruction notification, location sharing and other business functions are not a problem. You can use it as a walkie-talkie, and it can also be used as a communication aid in data collection. 4G Network Ordinary mobile phone card can be used directly G659 has a network communication function and supports 4G network. The card slot is a Nano-SIM card slot, which is consistent with current smart phones.