Yep, no control.
Works well but it does remain powered on after the car is truned off and even when locked which is not my favorite.
Additionally, if you do have this tool powered and in your car after turning off the car and then attempt to use another bluetooth device (like stereo bluetooth headphones) this thing will crate so much interference it is crazy and until you unpair or disable the audio potion of the pairing profile in your mobile phone, the other device will be unusable.
I unplug the usb drive upon exiting my car out of desire to use other BT items and out of fear my battery may get really angry
Other than that, this thing is really awesome and I will definately being using it exclusively for audio in my car. THANKS OP!!!!