I backed them on Ingiegogo at the end 2016 for delivery in January 2017. This got pushed back to August 2017 due to various production issues.
I have read others peoples reviews, and the common theme is almost identical to my experience:
1. Sound dropping in right ear bud. Completely fails the iPhone in trouser pocket test.
2. Battery life is pathetic; around 1.5 hours with no audio warning when it's about to die.
Frankly, the wireless headphones I purchased from my local store for $35 are a vast improvement on these. I bought two sets with a view to give one away as a gift. I won't be doing that now, too embarrassed.
I endured a seven months delay for this. To say I am disappointed would be a huge understatement. The fit is good and the sound OK, but the basics are simply not delivered. This product is not fit for purpose.
Bottom Line: No, I would not recommend this to a friend