Sensor technologies have been widely applied in many applications. However, few applications integrate different sensors together for providing better intelligence aiming to improve the interaction between human and machines. This paper proposes an interactive system which integrates a variety of sensors including ultrasonic and sound sensors to collect the human behaviors as its inputs. Based on these inputs, the system provides audio response to interact with people. In addition, the environmental information, such as temperature, humidity and luminosity, are also integrated in the proposed system to reflect the environmental changes. To verify the efficiency of the proposed system, the system is implemented in real test bed and conducted some experiments. The experimental results show that the proposed system has good performance in terms of the real-time response time.