In wireless body area network (WBAN), capacitive coupling body channel communication (CC-BCC) has the potential to attain better energy efficiency over conventional wireless communication schemes. The CC-BCC scheme utilizes the human body as the forward signal transmission medium, reducing the path loss in wireless body-centric communications. This demonstration is a wearable body area network system based on low power body channel communication. It includes three wearable devices. Each wearable device mainly contains a temperature sensor, a micro-inertial measurement unit μ-IMU, and a capacitive coupled body channel communication (CC-BCC) module. In this demonstration, visitors can intuitively understand the scheme and application of body channel communication.