Sound Link Micro fully charged and firmware up-to-date. It emits a beeping sound that alternates 2 higher beeps then 2 lower beeps, and repeats. Beep-beep-bomp-bomp-beep-beep-bomp-bomp, and so on. This periodically happens right at startup and after I disconnect the last device in the evening. Eventually it ends, but what is it signaling and can it be stopped?