The player we recommend is:
-Hi-Res-Lossless-Bluetooth-Sup port/dp/B01M1KSUJX/ref=sr_1_1? ie=UTF8&qid=1485737641&sr=8-1& keywords=fiio+x1+ii
You simply put the micro SD card that we provide with all the frequencies into the new player and run it at about 30 to 50% volume as she packs a punch and does not seem to need it and it helps it last longer and not get too hot… This player will play wave files so you will get the most out of your beautiful little instrument each hand every day.
We also suggest a supercharger for the player – https://www.amazon.ca/gp/product/B014CI6P40/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1