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1. During OFF mode, hold the MFB key and plug charging cable into the charging 

socket. 

2. Release the MFB. 

3. The status indicator will stay red and the headset is reset. 

You may also reset the headset to its default settings by hardware reset. 

1. Plug charging cable into the charging socket 

Summary of Contents for 312

Page 1: ...t for the first time it is recommended to fully charge the battery Insert the charger s plug into the headset s USB charging socket and plug the mains charger to an AC wall outlet or plug to the PC notebook Use only the supplied charger USB charging cable to charge the headset Headset Status Status Indicator Light Charging OFF MODE Fully charged OFF MODE Low battery Solid red Off Flash red with sh...

Page 2: ...sh blue light 3 times When you turn on your headset for the first time the headset proceeds into pairing mode i e the status indicator flashes blue and red alternately so that you can immediately pair it with your mobile phone POWER OFF Press and hold the MFB for 2 seconds Long beep Red light for 2 seconds Incoming call Ringtone through the earphone and buzzer ON Blinking purple Answer End a call ...

Page 3: ...5 times and you can hear 3 short beeps Then the headset turns off Repeat steps 1 to 3 to pair both devices again Voice Dialing In Standby Mode press MFB once Short beep Say the voice tag as soon as you hear the short beep and you must have recorded the voice tag into your mobile phone Last no Redial In Standby mode double click MFB Call Transfer mobile phone to headset In Talk mode double click MF...

Page 4: ...ug charging cable into the charging socket 2 Release the MFB 3 The status indicator will stay red and the headset is reset You may also reset the headset to its default settings by hardware reset 1 Plug charging cable into the charging socket ...

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