Radio Shack Stereo Earphones fits easily in pocket or purse case keeps cord mainained to help prevent tangles when not in use gold-plated 1/8" stereo plug helps reduce interference and signal loss Frequencey response: 20-20,000Hz Impedance: 32 ohms; Sensitivity: 100dB; Max power: 30mW; Cord Length: 3 1/4 feet