In this paper, we present a system that can provide a better caring service to the remote patients. The system we developed mainly focuses on the cardiac signal acquisition (i.e., ECG) and its communication. A prototype using the ZigBee wireless technology was built to verify the designed functions and required system performance. Results show the hardware and firmware on the end-user device can work together very well to perform reliable ECG signal acquisition as well as communication task via the ZigBee wireless technology. In addition, a PC-based GUI interface is also developed to provide ECG signal processing task and health care video tracking and management functions.