It’s a vibrating wearable , but the charge only last 6 hrs so it’s not powered on all the time. I want to do more breathing work myself. I feel like I’m not drawing in enough deep breaths from my belly, it feels like its stopping in my chest. Do you care to link some of the exercises you’ve found useful? But the feeling of the metronome in public can be a bit stress inducing lol I’m trying to listen, absorb the conversation, recall information, follow a rhythm, and speak all at once..it can be a bit overwhelming in the beginning