Exercise In-Ear Headphones w/ Over-Ear Hooks, TKO EB5048-CHYE, YELLOW Yellow headphones & cables w/contrasting grey over-ear hooks Cord Length: 4 ft. (1.2m), Plug: 3.5mm Stereo. Driver Unit: 10mm Impedance: 32 Ohm, Input Power: 10mW Frequency: 20-20,000Hz, Sensitivity: 103 +/-3dB Input Power: 10mW