Etymotic Research ER4SR +

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expired Etymotic Research Studio Reference Precision Matched in-Ear Earphones (ER4SR) $262.31 + Post ($0 with Prime) @ Amazon US via AU

$650 aud locally https://addictedtoaudio.com.au/products/etymotic-er4sr-studi... Seems to be a similar price to adorama deal, but they don't ship here, so would have to pay forwarding costs …