When do you know that the Soundcore Vortex headphones need to be charged? What does the low battery alert sound like?
Once the battery hits 50%, there will be an audible beep every so often. I never timed it, but it felt like every 30 seconds (and it drove me crazy). I feel like there was a softer beep every time the battery dropped 10% in charge until it hit 50%, then it was definitely much more frequent.
Thanks. What I hear (and I don’t know if it’s the charge alert or not) is an annoying dull “bonk-bonk” sound. Looking in the manual, I saw nothing that gives you a clue as to what to expect from the headphones, whether they are pairing, connected, not connected, on or powering down. You’re sort of left to your imagination to figure it out.