Nice sound quality
These headphones work very well. They come with a storage case, usb charger, stereo cord and instruction booklet. The storage case does have a removable strap also. You can use these with a variety of different devices and they are easy to connect. They hold a charge very good as I do not have to charge mine at all the whole day. Along with the bluetooth function you can use these to listen to regular FM radio or listen to your own music with the SD card slot on them. You can answer phone calls and controll everything right on the headphones which I like. These are light weight and adjustable. Great sound, performance and they are comfortable to wear