Ergo-fit design provides comfort and ensures they stay secure when active. In-cord microphone makes it perfect for answering your mobile phone calls. Noise isolating design and a 9mm driver unit deliver impressive sound.. Supplied with S/M/L silicon earpads for a comfortable and customized fit.. 10Hz-24kHz frequency response with 3.5mm jack. 1 year warranty | Panasonic Earbud with Mic in Black Size RPTCM125