Really impressed with my new bluetooth headphones. Who knew, I didn't expect to actually use this box as a battery charger for my phone, but the first week I had it I had a situation where I had to do exactly that. I was charging the phone in the car but when I had to step out that meant I had to stop charging, but then I thought, oh wait I can pull the cable and stick it into my headphone case and I actually was saved by the case. The charge meter shows how much juice is left, which I didn't have with my other BT charger, so it saves me a guessing game.The sound is solid, quite pleased with it. Given that it's a BT in ear headphone, I do not anticipate it to be amplified to the max, so I had a set expectation which this met, I have other more expensive sets that I use at home but when I am on the move, this is going to be my go to cans.Update: I got a standing qi charger and tested out the charging function of the case. It works! Another earbuds I have has a smaller case and won't reach the height required to engage the charge mode. Perfect!Update: unfortunately I lost the right side earbud so I am flying solo. I wish Miatone sells individual earbuds...