Amazon offers Prime members the Panasonic Noise-Canceling Stereo Headphones in White, model no. RPHC200W, for $11.58 with free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, shipping costs $6.59.) That's $8 under our mention from July and the lowest total price we've seen. (It's also a current low for any color by $33.) They purport to reduce outside noise by up to 14dB and feature 35mm drivers and a frequency response range of 10Hz to 21kHz.

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