Panasonic RP-HS33E-R Sport Earphones Red Features: Water & Sweat Resistant - Perfect For Running & Outdoor Use. Comfort Fit Ear Hanger Designed - Or Strenuous Activity. Vibrant Colour. Neodymium Magnet. Driver Unit: 14. 8mm. Impedance: 16ohm. Sensitivity: 103db/mw. Power Handling: 50mw. Frequency Response: 14hz - 24hz. Cord: 1. 2m. Manufacturers Guarantee. Panasonic Clip Type Earphones Red Rp-hs33 (electronic / Earphones)