Sony Mdr-Ex32Lp/Blu Ex Earbuds Headphones (Blue) (Discontinued by Manufacturer) Fashion Color Ex-Type Headphones 9Mm Driver Unit Provides Comfort Fit & Deep Bass Sound Silicone Earbuds Neodymium Magnet Frequence Response: 6 Hz-23 Khz 9mm provides comfort fit and deep bass sound F/R: 6-23,000 Hz; Sensitivity: 100db/mW Cord: 3.9ft (1.2m) Three sizes of earbuds (S, M, L)