NeweggFlash offers the Sennheiser PXC 250-II Collapsible On-Ear Noise-Canceling Headphones, model no. PCX250-II, for $69.95 with free shipping. That's $5 under our mention from three weeks ago and the lowest total price we've seen. (It's also the best deal now by $30.) These on-ear stereo headphones feature a 10Hz to 21kHz frequency response and a 4.9-foot cable. One AAA battery (included) is required for noise-canceling. Deal ends May 6.