Massdrop again offers its Massdrop x Noble X Universal In-Ear Monitor Headphones for $249.99 with free shipping. That's a savings of $250 off list price and tied as the best deal we've seen. They feature dual balanced-armature drivers, a 15Hz to 20kHz frequency response, and 30-ohm impedance; five pairs of eartips, a cleaning tool, and carrying case are included. Deal ends May 18.

Note: It has an estimated shipping date of May 23.