newegg.com.com offers the Sennheiser adidas CX 680i Sports Earphones for $49.95 with free shipping (Amazon.com sells it for the same price). That’s the lowest total price we could find for this model by $10. Features include DuPont Kevlar reinforced cables, sweat and water-resistant construction, 3.5mm plug, built-in in-line volume control, frequency response of 18Hz to 19kHz, and more.
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