A battery pack includes a pack body that includes a battery cell and that has an external shape substantially symmetric with respect to the horizontal and vertical axes, viewed from a front face on which terminals are arranged, and a terminal unit on the front face. The method and system includes generating a phonetic transcription of a portion of the audio file, analyzing the phonetic transcription and identifying a vocal segment in the generated phonetic transcription that is repeated frequently. A sliding member is attached to a screw with a U shaped head and a screw thread. The second plate cylinder 26 is individually driven by a second drive motor 46, and is engageable and disengageable from de associated second blanket cylinder 30 while the printing press is in operation, in order to perform flying edition changes or changes of a spot color. To this end, cilia function is only partially limited and mucociliary clearance is not significantly affected. To eliminate bit errors during LCU sensitivity testing testing), the system detects interfering transmission signals which may cause bit errors in the transmission of test data, and suspends the LCU sensitivity performance testing during periods of detected external transmissions.