this stuff is a MUST for all laptop & desktop users.

hard to believe what this little thing does.

listening thru headphones without UD100 is good.

after plugging in, UD100 expands soundstage & fill gaps with more details.

high freq became more significant,
bass more punchy,
you can even hear bass guitar previously unheard,
most importantly vocals are crystal clear.

initially i thought of plugging UD100 as required,
now it is going to occupy my usb slot permanently.

Many thanks chchyong89 !!!