Los audífonos son ligeros, su calidad de audio para jugar es excelente. These are best for immersion and total solitary listening of music. Ive been wearing these at work and my manager was banging on my wall before I noticed that he walked in. I couldnt hear my electric lawn mower or my car engine, had to double check that they were on. It really is not bright as we need it to be so we are going to have to add other strobes to the truck and again, we are worried about the switch failing as out of the box it is already not working everytime you try to turn it on. Very comfortable and they seem to stay in place with ease, volume buttons have a nice response when pressing on them. It?s very exact, u should have gotten a 8 but it?s great otherwise. Overall, its a great product if youre looking for a simple towel rack. These were measured with an Audioscan Verifit 2 test system. Third, while the battery life from the lithium battery is great, if Im spending $220 on a keyboard, I dont want to replace it in a few years if the battery starts losing its capacity.