From July 27th-2017, With the last update 1.1.5 I noticed the Bluetooth services would break up or squelch. Fortunately, it was quickly addressed with a remedie in the form of instructions,
https://www.kickstarter.com/projects/inspero/vinci-first-smart-3d-headphones-that-understand-yo/posts/1947866?ref=backer_project_update
Instructions to delete the old BlueTooth ids on the paired devices and re-search.
Unfortunately, June 2019, I’ve had to get another pair of headphones. The Vinci product, a great step in technology advancement 2 years ago, has now fallen behind, and never performed as expected for the price. I’ve reinvested in an Audio-Technica ATH-M50xBT . Suitable for my needs