Sony DRBT101 Operating Instructions - Page 25

When calling The recipient's voice cannot be heard.  Check that both this unit and the Bluetooth mobile phone are turned on.  Check the connection between this unit and the Bluetooth mobile phone. Make a Bluetooth connection (HFP or HSP) again (page 17).  Check that output of the Bluetooth mobile phone is set for this unit.  Check that the volume of the unit is not set too low.  Turn up the volume on the connected Bluetooth mobile phone if necessary.  If you are listening to music using this unit, stop playback, press the multi function button and talk. Low sound from recipient  Turn up the volume of this unit.  Turn up the volume on the connected Bluetooth mobile phone if necessary. Initializing the unit You can reset this unit to its default (such as volume setting) and delete all pairing information. 1 If this unit is turned on, press and hold the POWER button for about 2 seconds to turn off this unit. 2 Press and hold the POWER button and multi function button together for about 7 seconds. The indicator (blue) and indicator (red) flash together four times, and this unit is reset to the default setting. All pairing information is deleted. 25 US