I got my hands on the FIIO FH7 OG which are fantastic. An older model but still a great performer.

My Grado SR80x and the Etyomic ER4XR are the best banf for buck for a headphone and IEM. I know they are not for everyone but for I cannot help but to love them both.

The Grado sound is so much like the studio/monitoring headphones I grew up listening to while my parents were performing and the Etymotics are technically astonishing IMO.

Surface duo 2 and use a bluetooth dongle or USB amp. The phone is not great by itself to power any headphones or IEMs but has great processing power.

Surface duo 2 and use a bluetooth dongle or USB amp. The phone is not great by itself to power any headphones or IEMs but has great processing power.