The E4c's comfortable sound isolating sleeves contour to the inner-ear, naturally sealing out more background noise than noise-canceling alternatives, and the small, portable, attractive design position them as a must-have accessory for today's consumers. Weighing just over an ounce, the E4c makes the perfect accessory for music lovers who are serious about sound quality and detail. High-Definition Drivers with Tuned-Port Technology: The Tuned-Port technology of the E4c significantlyimproves bass response allowing for an ultra-wide frequency soundstage withbrilliant highs and extended bass. Personal Fit Kit: The E4cearphones include a pair of disposable foam sleeves and triple-flange sleeves,three sizes of flex sleeves, and three sizes of ultra-soft flex sleeves toensure a personalized, comfortable fit and maximum sound isolation. Sensitivity at 1 KHz will be 111 dB SPL/mW, while impedance will be 29 ohms (also at 1K). Gold-plated stereo output connectors will also be part of the package featuring a 1/8-inch plug. 61 inches of cablewill be supplied standard with each unit. The natural design of the stereo E4s rests comfortably within the ear, providing both a tight seal for sonic isolation and a secure fit.
1 Fits perfectly in the Shure E4 series line
These aren't available yet, but I tried them at the CES show in January. For those who found the E2 series lacking in high-frequency response, and the E3 series lacking in low-frequency reponse, but don't want to spend what the E5's go for, then the E4's are for you! Very nice sound, great fit in the ear, and extremely good at sound isolation - Even though there were hundreds of people milling around in a large, extremely noisy exhibition hall all I could hear was the music, even when played at a low volume.
