Thats the same amount for the Goliathus and youre getting the more expensive version. I?ve worn the PX7 while commuting in NYC and I can safely say the ANC performance of the PX7 is very effective at reducing the amount of outside noise seeping into your listening session. It?s awesome. Ita water proof and in fact allows water to be used for cleaning hair! They have a 1 year guarantee but how do I contact sennheisers Canada rep to get a refund/replacement? I love it and its TRUE to sizes in inches. They are so adorable! It was perfect! The build quality is nice but the functionality is not. They fit in my husband?s sunglasses very well and last around 6 months.