>>106956669
my brother wants a mp3 to store a bunch of pirated audio books to use instead of his phone.
>Budget
under $150 aud
>Intended use
sd card support, small form factor, blutooth and having a long battery life is a must as he will probably be using them to distract himself at work. support for audible would be a plus, but not completely necessary.
>Frequency response
I guess it should be a normal eq, maybe something that priorities the mid range, but really it shouldnt matter as long as it not bass heavy afik.