This cable can be used in place of the standard ISO mute relay that is supplied with Bluetooth and standard Handsfree car kits.
Can also be used in conjunction with a car specific lead to convert the audio to low level signal as required by BOSE or Infinity style amplifiers.
Designed for Parrot MKi /Motorola TK30 but can also be used with CK3100 by using the cable adapter provided.