Klipsch Reference S4i Noise-Isolating Headphones for $37 + free shipping

World Wide Stereo via Rakuten offers the Klipsch Reference S4i Premium In-Ear Noise-Isolating Headphones in Black, model no. 1013731, for $57.09. Coupon code “GET20CE” cuts it to $37.09. With free shipping, that’s $3 under our December mention and the lowest total price we’ve seen for these earphones. (It’s a current low by $16.) These earbuds feature a frequency response of 10Hz to 19kHz, four sizes of ear tips, 3.5mm plug, and more.

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