Bose via eBay offers its Bose QuietComfort 3 Acoustic Noise-Cancelling On-Ear Headphones for $99.95 with free shipping. That's $40 under our mention from the weekend of Black Friday, which was bundled with a $20 eBay gift card, and the lowest price we could find now by $110. They feature interchangeable adapters, inline remote for Apple devices, fold-flat earcups, and 25 hours of noise-cancelling on a full charge.