Phaz 12 P20W-CST3N01 Circumaural Head-band Black

3.5 mm, 40 mm, 1200 mAh Lithium-Ion <b>CHARGE WHILE YOU LISTEN</b>
In today's mobile, energy-hungry world, Phaz is the first company to transfer the power from your headphone's battery to boost the power of your mobile device. And our patented technology allows this to happen without any audio performance compromise. Which means you never again need to choose between your music and your mobile device's battery run-time.

<b>BASS BOOST</b>
With a powerful HD amplifier driving premium 40mm ear speakers, Phaz headphones have a switchable Bass Boost, delivering 15db of extra bass impact without risk of distortion.

<b>INTEGRATED HD AMP</b>
With our built-in amplifier, Phaz headphones deliver consistent HD sound quality regardless of the sound source, whether you are using the latest smart-phone or an inexpensive MP3 player.