HZTouch is a utility tool designed for iPhone and iPad to centrally manage devices in meeting rooms and similar spaces. Users can create control interfaces for meeting rooms using computer software, upload them to HZTouch, and have them displayed as designed on the device. This provides customers with a comprehensive centralized control interface. HZTouch communicates over WiFi with computer software for centralized control, transmitting user actions from iPhones or iPads to the computer software. The computer software then processes these actions based on settings, such as sending serial commands or network control commands, to control devices connected to the control network. This software enables centralized control of meeting room devices solely through iPhones or iPads.