Today until noon ET, Amazon offers the Sennheiser CX 880 Ear Canal Headphones for $49.99 with free shipping. (Select "View Gold Box Offer" to see this price.) That's the lowest total price we could find for this model by $30. These earbuds feature ear-clips, 17Hz to 23kHz frequency responce, 32-ohms impedance, ear debris guard, and more.