* Home Screen Widget. Press the button to simulate a hands-free button, which starts the Bluetooth Voice Dialer. Four sizes: 1x1, 2x1, 3x1, and 4x1.
* Optionally simulate a hands-free button press when you use a Bluetooth AVCRP media button (play / pause, next, or last)
* A shortcut (and car home shortcut) that simulates a hands-free button, and starts the Bluetooth Voice Dialer
Some phones don't support Bluetooth voice dialing at all. Every phone and bluetooth device is different. Not all combinations will work. You'll have to try it for yourself to see if it will work.
Some car stereos do not send the forward/backward media button events until after the play button is pressed once.
LG G2x modifies the Car Home app such that you cannot add custom shortcuts.