Wireless Stereo HeadsetMDR-AS800BT
Sound volume cannot be adjusted.
- Operate as follows.
- Increase volume: Press the multi-function button 2 times consecutively, holding the button down at the second push ().
- Decrease volume: Press the multi-function button 3 times consecutively, holding the button down at the third push ().
- When you adjust the volume, press the button 2 or 3 times with short intervals between each press (about 0.4 seconds) so the operations will be recognized as being consecutive.