Etymotic er3 se earphones studio edition true reference listening with the etymotic er3 se studio edition earphones that provide the most accurate sound in its class'. '.strtoupper('e')tymotic er3 se are equipped with single high performance balanced armature drivers that have been tuned to deliver a large sound spectrum with natural and flat frequency response'. '.strtoupper('a')ble to unearth all subtleties of the sound etymotic er3 se convey natural and unblemished sound that matches the original recording'. '.strtoupper('t')his makes the er3 se perfect for listening to lossless high fidelity music files with a critical ear either for professional recording artists or discerning audiophiles'. '.strtoupper('e')tymotic er3 se are a must have for discerning engineers audiophiles and consumers wanting the most accurate in ear earphone available'. '.strtoupper('e')asy replacement and customisation of the detachable cable makes the er3 se a highly versatile earphone'. '.strtoupper('c')lean and clear sound nothing else'. '.strtoupper('n')o compromise high performance noise isolating earphones that deliver best in class benefits and superior value perfectly matched to the latest product innovations from most music players that support a 3.5 mm stereo phone plug'. '.strtoupper('w')ith 35 db 42 db of noise isolation these earphones have some of the highest noise isolation of any earphones or headphones on the market today'. '.strtoupper('s')tudio edition natural and unblemished sound with a flat response makes the er3 se ideal for critical listening for professional recording engineers and audiophile listeners'. '.strtoupper('w')ithout enhancements to any particular frequency range the er3 se bring out only genuine sound'. '.strtoupper('p')ioneering technology etymotic earphones were the first earphones commercialised using balanced armature driver technology and are recognized as the world leader in response accuracy to which all other earphones are compared'. '.strtoupper('a')dvanced isolation providing the highest noise isolation of any earphones or headphones on the market today etymotic er3 se include an assortment of noise isolating foam and silicone eartips options to ensure the right seal and comfort levels.