As you can notice that for the iTech Clip Music 802 bluetooth headset Mobile away alert feature settings. If you follow the instructions on the paper user guides comes with the package, the Mobile away alert can never activated. Its obviously a wrong instruction.
Printed instruction in English: Press and hold the VOL UP and VOL DOWN for 2 seconds for enable and disable Mobile away alert feature.
Printed instruction in Traditional and simplified Chinese : 按住調高或調低音量按鈕2秒. In English which is "OR".
Both way also failed to turn on the feature.
After did a search on google, and found an E-version of the manual here. Which is a revised version and show correct instructions.
The correct instruction of activating Mobile away alert is by press and hold both MFB and VOL UP for 2 seconds.