Sentry Neons Stereo Earbuds, HO622, Blue Use for TV, gaming, tablets, iPods, MP3 Players, smartphones, audio books, DVD and CD players, computers, laptops and more Impedance: 32 Ohms +/- 15 percent; Sensitivity: 99 +/- 3dB Frequency: 20Hz - 20kHz Comfortable in-ear 10mm driver for all-around balanced sound 4 foot cord length with 3.5mm plug