Panasonic Premium Sound On Ear Stereo Headphones RP-HF300M-K with Integrated Mic and Controller, Travel-Fold Design, Metallic Finish, Black The stylish Panasonic RP-HF300M On-Ear Headphones skillfully combine the high-performance quality of on-ear headphones with the comfort and convenience of lightweight portability. Their powerful, dual 30mm drivers and neodymium magnets deliver an impressive balance of full, resonating bass and lifelike mid and high-frequency tones for clear, natural sound outdoors and in (10Hz-23kHz). They fold two ways — either flat fold or inside fold — for a neat, ultra-compact fit in bags, purses and packs. Soft, high-comfort earpads fit snugly on the ears and a smart, integrated inline control lets you switch seamlessly between music and calls and back again. The elegant Panasonic RP-HF300M On-Ear Headphones come in a choice of four distinctive earcup/headband color combinations. Select from black/black, silver/white, and metallic blue/black.