Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Stunning !!

These are the best one can get for an amazingly low price !!I got these for 9$ on free shipping. Has been 2 years and they still are GREAT !The best testimonial would be that my friend was thrown in the pool with my headphones on and believe me - the headphones survived !!Superb Bass.. I just got an Altec Lansing behind the neck headphones for 16$ but the max sound is so low... nowhere near the Bass and power of Philips HS500 !Hats off !!