Bluetooth wireless technology is short-range and low cost wireless interface, which is optimized for mobile devices providing very low power consumption. However, a scope of Bluetooth application areas is not limited to mobile devices but expands to fixed equipment as well. Not only Bluetooth functions as cable replacement but also it can establish ad-hoc wireless network for voice and data simultaneously. Due to nature of 2.4 GHz ISM frequency band, Bluetooth is equipped with various data packets selection to minimize throughput degradation. Also, to secure connecting to the right target devices, Bluetooth includes authentication and encryption for communication links.