Shure E4c sound isolating earphones now shipping

Designtechnica reports that Shure's new E4c sound isolating headphones are now shipping, and they've got all the deets. The phones, which weigh just over one ounce, use Shure's new High-Definition driver with Tuned-Port technology, which is supposed to significantly enhance bass response and please even the most discerning audiophile. You also get Shure's Personal Fit Kit with them, which includes a pair of disposable foam sleeves and triple-flange sleeves, three sizes of flex sleeves, and three sizes of ultra-soft flex sleeves, so if they don't fit in your ear comfortably you might want to see a doctor. Retail price is $299.