HIFIMAN HM802s High Fidelity Portable Music Player with Power II Amplifier Card

this is fears m11 Pro for $649 you get a high-end portable music player with THX technology however for $200 less you can get this this is the regular m11 so why would you spend the extra $200 on the m11 Pro rather than the regular m11 what do you get and how much better doesn't perform sonically to start with let's have a look at the size of the m11 probe s as the original m 11 now my first glance I thought these were the same size but apparently they're not if you turn them on their side you can see actually that the pro is very slightly thicker it's probably a little bit more obvious if I turn them edge on it apparently has a bigger battery and it has more power output through the thx amp and it drains the battery faster apparently so I actually see on the back it says the thx amp is mentioned there it's the triple a 78 and there are different types of triple a amp if you go and look