Alot of problems with the Bluetooth connection, also microphone is basically non existent if it's a little windy outside.
Have had them for a month, only been a pain in the ass for me, don't buy them if you are going to be making calls or if you have multiple Bluetooth connection like a smart watch or so.
Buy them if you want a earphones that stay on while working out.
P.S I have a huweai phone, I think they work better with iPhone.
Update after 6 month use:
Still shit tbh, don't buy those ever!
The amount of problems I've had is what you expect from a pair of 20$ headphones not 200$.