Head Director via eBay offers the Hifiman In-Ear Headphones for Apple iPhone, iPad, and iPod in White or Black, model no. RE300i, for $39 with free shipping. That's the lowest total price we could find by $10. They feature a microphone, frequency response of 20Hz to 20kHz, 3.5mm jack, and in-line volume control. Deal ends May 31.