Left side doesn't have sound is non functional. The Etymotic ER4SR Studio Reference Earphones are high-quality, in-ear earbuds designed for studio monitoring. With a focus on accuracy and clarity, these earphones feature noise isolation and an in-line control for customizable sound settings. The 3.5mm jack connectivity allows for easy integration with various audio sources, while the built-in microphone offers convenience for hands-free calls. The multicolor design and compact form factor make these earphones both functional and stylish for on-the-go use in the 2020s.
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