In-Ear Earbuds, Red. Description: Headphones, Earbuds, 3.5mm Plug Fits iPods and Most MP3 Players, Designed to Match Your Portable Device, Dynamic Drivers Produce Superior Sound Reproduction, 4' Cable with Insulated Jacket, In-Ear Tips Block Out Noise for Sound Isolation, Includes 3 Pairs of Ultra Soft Silicone Eartips, Frequency Response: 20Hz - 20kHz , Sensitivity: 98dB ,48 per case