Get great sound on the go with these Hi-Fi Premium Noise Isolating Earphones from Monoprice, These earphones excel at reproducing both the lows and highs, so they are well-suited for every type of music, from rock to dubstep to classical, These phones accurately follow drops and can maintain the low sustains, while still producing bright mids and highs, These earphones feature a strain-relief clip on each ear piece to help prevent damage to the cord, Three different sized ear buds ensure that these phones will always have the right fit, Note - For best results these earphones should be broken in by playing pink noise through them for about 24 hours, The difference in sound quality before and after the pink noise break-in period can be quite dramatic, , Driver Unit - 8 mm, Sensitivity - 90 plus or minus 3 dB, 1mW S, P, L at 1 kHz, Frequency Response - 20 Hz to 20 kHz, Impedance - 16 ohms, Rated Power - 2mW, Max Input Power - 5mW, Dimension - 4, 5 x 4, 2 x 1, 5 in, Item weight - 0, 09 lb SKU: MNPR113