Memorex Stereo Earbuds with Silicone Tips Memorex 32022913 AmpGear Earbuds General Features: Black design Sound Isolation feature Provides strong bass sound response 3.5 mm gold plated plug Includes Three (3) Replaceable ear sleeve tips (large, medium small) Specifications: Frequency Range: 20 - 20,000 Hz Sensitivity: 100 dB Input Impedance: 16 ohms Cord Length: 3.9ft/1.2m, approximate)