Compatible with any device with Bluetooth technology 2.1 or later.
Tested with iPhone 3GS, 4, 4S, iPad 2, 4, air, windows 7 pc, mac mini 2013 macbook air 2013.
Sound quality identical to the cable jack, no audible loss of up to 15 meters apart, tested to 8 meters distance with a load-bearing wall in the middle with no problem.
I recommend the eyes closed, I bought a second.