Ive only used them for a few days, but the sound is great and the charge lasts a LONG time. I think they state 5 hrs, but it is probably more like 3-4. I bought this mic especially because of its touch panel which has microphone gain knob and mute/unmute. I was replacing my old earbud tips because they were getting loose. Happy to say I was proved right - the sound quality (both the headset and mic) are absolutely fantastic for the price, along with the noise cancellation and general comfort. In my opinion, Id recommend this wireless charging mouse, as its really rare to find a wireless silent click mouse that is rechargeable and easily portable. My only issue that the boning bent when I sat down but it did not roll down or up it stayed in place. One tip is from this company. Dafür ebenfalls 5 Sterne 🤩 Without doubt the weakest and most uncomfortable headband in the history of headphones, if AKG can do this - design it, test it, put it into production, MkI, MkII, MkIII, just wonder how bad the rest of the design is - it really is - and I’m including the sound, the tiny enclosures, arh I could go on for eternity, these headphones make me furious, never AKG for me again, never.