As one of its daily deals, PricePlunge offers the iFrogz Audio Luxe MicroBuds in Blue, model no. IFA-LB-BLU4, for 99 cents. Coupon code "coldplunge5" cuts it to 94 cents. With $1.99 for shipping, that's the lowest total price we could find by $8. (For further comparison, we saw a model that included a mic for $3 with free shipping last spring.) These headphones feature 6mm drivers, frequency response of 20Hz to 18kHz, and a 3.5mm jack. Deal ends today.