The rack is stiff enough, though I did not exceed the recommended limits. Me encanta ver películas con un sonido y video decente, tengo o he tenido equipos de diferentes modelos de klipsh, bose, samsung, Logitech. For the manufacturers information I think the only thing that I would like is a hole big enough to put a key ring through, the string seems like it will be okay, but I would feel better with a key ring. El sonido es excelente, se escuchan bastante fuerte y el bass no se distorsiona aún cuando les estás exigiendo el máximo. Less than 2 months into owning these, part of the strap broke on the left one. Harder surface and yet extremely comfortable and correctional. First time you try pair it to the receiver you to transmit to want turn off all other Bluetooth devices in the house. I still wouldnt drive with these on year round. Other consumer headphones like Bose Quietcomfort, Sony MDX, and the M50x are all consumer headphones that have been tuned at the factory to deliver a bassy, punchy, and poppy sound for enjoyment. Make sure you drill a pilot hole into the stud before screwing in the screw.