If the unit does not respond properly or appears to be “frozen”, you may wish to try resetting it. To do so, move the Lock/Aux/Bluetooth Switch to the Bluetooth position (right), then press and hold the Play/Pause/Pairing Button and the Volume – Button simultaneously for about 8 seconds until a long beep sounds. Doing so will restore the unit to default settings.
NOTE: After a reset, you will need to re-pair your Bluetooth device(s).