The GC618PLUS is equipped with IP68 waterproof and dustproof to meet hardware requirements in harsh communication environments. Intelligent noise reduction can maximize call clarity, and the 2600mAh ultra high performance large battery is sufficient to support ultra long communication. The dual card configuration for automatic switching can automatically seamlessly switch between the two best telecom service providers in the communication environment, maximizing signal stability. Dual mode configuration allows for analog signal calls in public network blind spots. GPS/Beidou positioning services can confirm location information in real-time and record communication location trajectories. One click alarm can maximize the protection of users' life and health safety.