The ER3XR Extended Response offers a modest bass boost, building on the sound quality of the ER3SE, while providing a slight bass boost for those listeners that prefer a stronger low end response.

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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
•Achieves highest output sensitivity in its class with 102 dB SPL sensitivity at 1 kHz at 0.1 mV
•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

•Precision machined metal bodies with anodized finish
•Assortment of noise-isolation eartips ensures proper seal and comfort
•CUSTOM•FIT option available
•Detachable, 4ft. cable allows for easy replacement

Durability and Warranty
•2-year replacement warranty
•Reinforced cable for durability
•User-replaceable filters that protect the balanced armature drivers from ear wax

In the Box
•Assortment of ear tips
•Filter removal tool and replacement filters

Technical Specs

Frequency Response 20 Hz - 16 kHz
Transducers High performance, balanced armature micro-drivers
Noise Isolation 35-42 dB
Impedance (@1kHz) 22 Ohms
Sensitivity (@1 kHz) SPL at 0.1v 102 dB
Maximum Output (SPL) 120 dB
Cable Detachable, 4 ft
Warranty 2 Years
Custom-Fit Option Yes