Zalman ZM-DS4F

Electro Dynamic Speaker, 2x 28mm Tweeters, 2x 40mm Woofers, 50Hz-20kHz, 103dB +-3dB, 3.5mm, white <b>Dual (2 way) Stereo Method (Total of 4 Speaker Units)</b>
Unlike regular stereo headphones, the "Dual Stereo Headphones" are equipped with 2 diaphragms per channel. The smaller diaphragm functions as the tweeter, while the larger diaphragm, that is positioned behind the smaller diaphragm functions as a woofer similar to a 2-way speaker.

<b>Ultra Broad Band Sound</b>
The 2-way design not only broadens the headphones frequency response range for deep bass & clear highs, but also produces a well balanced response through out its responsive range.

<b>Optimized for MP3 Players, PMP, Mobile CD/MD Players</b>
Using the "Dual Stereo Headphones" when using a mobile audio device will provide a strengthened mid and low sounds.

<b>Compact 3-Point folding headband for convenient mobility.</b>

<b>Neodymium magnet speaker units.</b>