Instruct: Classify the given Amazon review as either positive or negative.
Query: Great Ear tip for IEM from SHURE - - - Works Like Magic !

This Shure ear tip can replace ear tip of many IEM (In Ear Monitor) in the market.It works like magic !!!This Shure PA757M can improve sound of many IEM from other brand.I tried it on Panasonic RP-HJE50 and it make this IEM sound fuller and bass also improved.On Philips SHE-9500 (modified by closing all bass tubes to reduce artificial bass) it become better balanced.For Creative ep630 (Sharp MD 33/ Sennheiser IE4 (cx300) ) no real improvement but the sound stage become wider so it is more pleasure for prolong listening.If 9 - 10 bucks is not a problem you should give it a try.