Pyle PEBH25BL Ultra Slim In-Ear Earbud Stereo Headphones for iPod/MP3/Any Media Player (Super Bass, Blue) (Discontinued by Manufacturer) Compatibility:IPod/Iphone/Zune/Sansa Models, As Well As Any Audio Playback Device With A 3.5-Millimeter Jack Impedance: 32 Ohms Sensitivity: 105dB S.P.L at 1 KHz Frequency Response: 20Hz~20,000Hz Cable Length: 4Ft Plug Type: 3.5mm Stereo Plug Color:BlUE Sold as : Unit Cable Length: 4 ft. Impedance: 32 Ohms Sensitivity: 105dB S.P.L at 1 kHz Frequency Response: 20Hz-20,000Hz Plug Type: 3.5mm Stereo Plug