Massdrop offers the Beyerdynamic In-Ear Headphones, model no. DTX 72 iE, for $44.99 with free shipping. That's tied with last month's mention and the lowest total price we could find by $34. They feature a gold-plated plug, 9mm drivers, aluminum housing, three sizes of silicone tips, and frequency response range of 20Hz to 20kHz. Deal ends May 14; the expected shipping date is May 28.

A close price: Sonic Electronix charges $43 plus $5 for shipping.