Standing at the starting line I turned them on to get amped for the race - totally dead! This made for embarrassing and frustrating situations where I had to dial back into important conference calls. Extremely light in weight; these weigh mere ounces. The support team are great too, happy to answer questions and assist when needed, with 2yr guarantee in the box I hope to be using these for many years to come, I will upgrade IF Avantree add bass and treble controls but otherwise it was money very well spent for me. I am obsessed with how this turned out in my sons nursery! Also since she’s still crawling the shoes got scratched the first use and the glitter came off. I was very content with everything I had, honestly. These are authentic. CRUSHED. So it can definitely handle weight.