The ER3-XR Extended Response offers a modest bass boost, building on the sound quality of the ER3-SE, while providing a slight bass boost for those listeners that prefer a stronger low end response.
Best-in-Clas
No 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.
Studio Grade Accuracy
85%+ response accuracy from 20 Hz - 15 kHz
Achieves highest output sensitivity in its class with 102 dB SPL sensitivity at 1 kHz at 0.1 mV
Accu Driver high performance, precision matched, balanced armature drivers
Noise Isolation
35 dB - 42 dB noise isolation
Documented highest noise isolation of any earphones or headphones on the market today