TigerDirect offers the Logitech Ultimate Ears 100 Noise-Isolating Earphones in five colors (Neon Lights pictured) for $9.99 with free shipping. That's the lowest total price we could find by $4, although they were $4 less in May. They block outside noise up to 24dB and feature a frequency response of 20Hz to 20kHz, 3.5mm connector, and four sizes of ear cushions.