New Sealed Philips SHM3100 Earbud Multimedia Headset in Ear with Microphone

Built in microphone
(2) 3.5mm stereo plugs
Highly sensitive microphone for clear voices pick up
work with both MAC and PC
Neodymium magnet enhances bass performance and sensitivity
Optimal earbud size for best fit and comfort
Frequency range is earbuds = 12-20,000 Hz, microphone = 80-15,000 Hz