As one of its daily deals, Cowboom offers the Sennheiser adidas Sport In-Ear Headphones in White, model no. OCX 685i, for $19.99 plus $5 for shipping. That's the lowest total price we could find in any color by $27. They feature a frequency response of 18Hz to 20kHz, in-line smart remote and microphone, and 3.9-ft cable. Deal ends today.