Average battery..bad design of the charging port and overall it feels cheap in the hand..I used it for 2 months and the on-off switch died.

The sound is very good and the battery lasts 2-3 days with regular use(!)
The magnets that are supposed to hold the earphones in the case are weak, causing them to easily come off the case and get tangled in the clothes you are wearing.
Putting the earphones in the case requires practice and is almost impossible to do with one hand, as I was used to doing with my previous ones.
The vibration for incoming calls is annoyingly loud and noisy(!?) and cannot be deactivated or adjusted.
The cover of the USB port is thick and interferes with the cable connection, so you won't be able to use any cable for charging.
In short, very good sound and battery, poor design.