Professional  handsfree car kit H801

Product Description:

1: It can be used for most types of mobiles by choosing different adaptors.
2:Automatically switched between handfree system and car stereo.
3:Clear voice, no howling, effectively control the noise and echo.
4:Auto-charge: when the mobile in a low battery, press the charge on/off power on
  the adaptor for charging. 
5: Auto-mute, auto-switch and auto-answering: when the call comes or you dial
  the number, The car stereo will auto-mute, and be switched to words, you
can auto-answering by setting the mobile, when the talk finished, it will come back
to the primary playing.
6:Choose between speaker and earphone, to ensure your private talk.
7:Professional installation, built-in design: compose standard mobile handfree
 system through connecting the car stereo power with speaker. 
8: DSP technology