Maxell Pulze Plus Ear Buds Features Ideal for all portable CD/DVD/MP3/iPod Players Travel pouch for easy portability Soft silicone tips for extended wear and comfort Soft-touch rubber cord Specifications Impedance: 32 ohms ± 10% Driver: 13.5 mm Magnet Type: Neodymium Film: 0.009 mm Coil: 5.9 mm Sensitivity: 100 dB /mW Channel Balance: <3 dB Rated Input: 1 mW Maximum Input: 5 mW Frequency Response: 20-23,000 Hz L-Plug Connector: Nickel Plated 3.5 mm Stereo Jack (TRS) Cord Length: 90 cm Maxell Reference: 303090