The Fiio Q1 MK ii is my first foray into portable devices which I bought to use on my travels. I use it paired with an iPhone SE and mainly running the Qobuz player to play imported music from their catalogue. I'm impressed by the sound quality of this quite tiny DAC/AMP and at the price it really is quite remarkable value. I also got the Fiio F5 IEMs which come with a balanced cable, although I have a personal preference for full-size headphones. For travel purposes the Bose QC35 (that I already had) fit the bill very well ... unsurprisingly not up to the SQ standard of my main headphones but more than adequate while on-the-go. In fact, I would say they match the Q1 very well (with the 3.5mm cable) although I feel they do need a boost from the GAIN switch on the Q1 to sound their best. I also tried it with Bass boost although this seemed to muddy the sound too much IMO. In any event, the QC35 are not bass-shy. All in all I am very satisfied with this purchase. An excellent product at the price.