New design multifunctional headset with outer speaker

Feature
1. Two Extra Outer Driver Units for Music Sharing Headphone ;
2.produces crystal clear, stereo sound with ultimate bass;
3. self-adjutable and flexible headband and cushioned ear pads for wearing comfort;
4. it can both work as a wired headphone and a wired speaker;
5. with switches to adjust the sound volume: Volume Up or Volume Down;
6. with built in battery case for power supply;
7. designed with In-Use indicating LED light;
8. tangle-free cable for use convenience;
9. 3.5mm, stereo jack for MP3, IPods, CD, DVD, TV, Radio, Home Theater Systems and so on;

Specification
1 Out Speaker :40hm,2.0W, F36×14mm,110+/-3dB
2 Inner Speaker:32 ohm,0.5W,F40mm ,110+/-5dB
3 Jack:3.5mm Stereo
4 Frequ Range :20Hz-20KHz
5 Max Input Power For Inner Driver Units:10mw
6 Max Output Power For the Outter Driver Units:3w
7 3.7V Lithium Battery,680mA
8 Power Charge:DC ,5V
9 Charging Hours :3 Hours
10 Working Hours For Outter Speaker:2.5 Hours
11 Audio Cord Length :55 Inches
New design multifunctional headset with outer speaker