Amazon offers its Prime members the Panasonic Street Band Monitor Headphones in Silver, model no. RP-HT480C-S, for $30.28 with free shipping. (Non-members can spend $35 or more to bag free shipping; otherwise, shipping adds $6.49.) That's $3 under our mention from last week and the lowest total price we could find today by $37. These Energy Star-certified headphones feature 50mm drivers, a frequency response of 8Hz to 30kHz, and in-line remote and microphone.

Update: The price has dropped to $28.77 with free shipping.