Etymotic

ER3 Series Balanced Armature Driver In-Ear EarphonesEnhanced and extended bass response. Sensitivity (@1 kHz) SPL at 0.1v-102 dBPrecision machined metal bodies; high performance balanced Armature...

Etymotic ER3SE Studio Edition Earphone,BlackFrequency Response: 20 Hz – 16 kHz. Transducers: Single high-performance balanced armature per channel.Precision machined metal bodies; high performance...

Etymotic ER4XR Extended Response EarphoneHigh performance Balanced Armature drivers are precision matched to within 1 dBTransducers: Single high-performance balanced armature per channel.Specially...

Etymotic ER2XR Extended Response Earphone, MulticoloredTrue high-accuracy sound with enhanced and extended bassProduct Note : If the size of the earbud tips does not match the size of your ear canals...