Apparatus and method to facilitate power consumption reduction in one or both of a first and second device are disclosed herein. In some embodiments, the first device may include one or more antennas that is to receive first audio data captured by the second device; and one or more processors in communication with the one or more antennas. The one or more processors is to identify a first energy level associated with the first audio data, determine, in accordance with the first energy level, a size of a buffer to be updated in the second device to capture second audio data, and detect whether one or more key phrases is included in the first audio data, which may be repeated depending on the no, one, or more key phrases detected.