I have been in the market for a quality portable mobile AMP to use with my Ultimate Ears 18 Pro custom In-Ear monitors. There are plenty of good ones in the market but I was after one specific feature; I wanted it to be wireless! True audiophiles will not use wireless connections for their audio setup. Even for on the go. I know all about aptX and AAC. Their Pros and Cons. I am willing to scarifies that bit of audio quality by going wireless for a little more convenience. I have a very good home setup that I am happy with and just wanted something simple for my on the go. Something as easy as not even having an AMP and just plugging the headphones straight to the phone, or, even have them wireless so I could enjoy the phone on my work commute without any cables attached.