V&M Innovations offers the refurbished Sennheiser HD428 DJ Stereo Headphones for $33.49. Coupon code “4HDAUDIO” drops it to $23.49. With free shipping, that’s $55 under the lowest total price we could find for a new unit, although we saw a refurb for $3 less in November. They feature a 18Hz to 22kHz frequency response, noise-isolation earcups, 3.5mm plug, 1/4″ adapter, and more.

Note: A 90-day V&M Innovations warranty applies.

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