I think I should elaborate a bit more on the p1 and R3.. P1s are just very different to most iems I have heard but In a good way, very detailed and very tight musically just like a planar, bags of detail with nice depth and width and after a bit of brain burn in a totally fantastic iem.. It's not for those that like a nice kick to the bass though but I think it's so good technically and also not being a bass head that I can forgive it. They do require bags of power though to shine, they sound good on the R3 but great on the R6pro, I dont think this is just down to dac implementation but simply the juice the R6pro puts out, I would definitely recommend this iem. The R3 again typical Hiby, solid build, smooth ui and sounds pretty good.. Nice sense of space and layering and nice balance of musicality than neutral..the mo is great and don't get me wrong I still think this little beastie is a marvel but the Hiby is perfect size for functionality and pocket just easier to use with better audio and cost me in the end after selling the mo £75! Result! .. Very pleased with both. Just my opinion others may differ.