With my own limited hearing above 3kHz I had to laugh at this fantasy world of UHD from Amazon and the requirements. I guess I live in a very different world now for my own hearing. Sorry if this wasted your time, but made me laugh.
Data speeds of 1.5 Mbps or higher (such as LTE)
Supports 16 bit/44.1 kHz or higher (such as iPhone 4s and later)
HEADPHONES OR SPEAKERS
Support a dynamic range of 20 kHz+ for HD (or 40 kHz+ for Ultra HD)