No problem for the moment. Sound quality is excellent. Basses could have been better. Treble is very successful. Charging is going well. I moved away from the phone, there was no disconnection. KZ is again a very successful Bluetooth headset. They are my favorite headphone brand. Thanks to the seller!
It arrived in for like 10-15 days and it is not working. The charging box is able to be charged but the earphones are not charging. It's such a dissappoinment after waiting for 2 weeks.