AT&T PEB01-BLK Stereo in-Ear Earbuds with Tangle-Free Cable, Black Stereo earbuds with flat, tangle-free cable 10mm driver Speaker imp: 32 ohms, Frequency: 20hz-20kHz Soft silicone ear buds provided for a super comfortable, noise reducing fit Industry-leading 3.5mm Jack Connectivity technology : Wired