That being said, very pleased with the look, strength and stability of the stand. Die Laufzeit des Akkus hängt wie immer natürlich sehr davon ab, wie laut man Musik hört und in welcher Stufe man ANC nutzt. I will update once I use them. This ticked all the boxes for me and it is so easy to put on! Ganz anders ist da die Lieferfirma "Scharf Metall design". I really liked how the sequins are 2 tone so they are green but can also look blue in certain lights. I?m contemplating returning them. Love the cars design placed on the sides instead of the top and the fit is his usual size. But for their price, it seems their quality should be just a tiny bit better. This product seems very well made.