Speech therapy device with an app... train yourself to stop stammering?

Speech therapy device with an app... train yourself to stop stammering? Hi guys, just seen this new product in development that (as far as I can tell) monitors your breathing and speech rate & gives your real-time feedback via a device on your chest to help you stammer less. [https://www.indiegogo.com/projects/benetalk-the-world-s-first-wearable-speech-tracker/x/22590644#/](https://www.indiegogo.com/projects/benetalk-the-world-s-first-wearable-speech-tracker/x/22590644#/) Anyone ever tried anything like this, or interested in trying it? Through traditional speech therapy over the years I consider myself to be able to speak with a high level of fluency, however my stammar still flares up in formal business meetings and/or interviews, so definitely interested to see if a prompt to remind myself to breathe slow will be effective enough to make a material difference..