So I decided to keep them and I decided that Im just going to obviously wear them around the house and hopefully as I break them in they will stretch out a little bit more to feel a little bit more comfortable. You need at least 3/4" to 1" of attachment into a stud. 4Ghz connection to the USB dongle. The fit seems fine, but I do not like having to turn up the sound (I switch between headphones for various things and I do not like the requirement to be resetting the system volume to compensate). This was not a present problem in MacBook Air devices produced before 2018 as the CPUs in those devices were properly cooled (the fan was connected to the CPU with a pipe). This style has the usual Teva great fit and comfort, with better traction than previous styles, but they are too soft and too flexible. Second, theyre available in bronze, which fits my decor better and hides dirt. And combine that with the battery life, and this is a perfect fit! This is a feat of Quality Sound Engineering. Como hice el pedido desde Portugal, era mucho lio devolver, asi que mis marido se las quedo.