As one of its daily deals, B&H Photo-Video offers the AKG K-240 Studio Professional Semi-Open Stereo Headphones for $49.99 with free shipping. That's $10 under our spring mention and the lowest total price we could find now by $31. They feature a frequency response of 15Hz to 25kHz, 50 ohm impedance, and XXL transducers with Varimotion diaphragm. Deal ends today.