This is a free version with basic function. The pro version has more features: 1) Widget, 2) Automatic turn on/off when music start/stop playing to save BT headset battery,3) Automatic turn on/off when Bluetooth headset connect/disconnect Feature: 1. No reboot issue as long as you turn off this app before disconnect bt. 2. Auto restart after phone call; route audio through bluetooth mono headset or earpiece. Be able to use bluetooth headset for voip like skype, sipdroid, etc. Note 1: Need to maximize media/notification volume before turn on this app. Note 2: For skype user, need to turn on this app after making skype call. This is due to a problem of skype. No reboot issue as long as you turn off this app before disconnect bt. Streaming music,radio,voice search,voice dialer,voip 5 days free trial.