Vtsonic VT-H78 Instruction Manual Download Page 4

 

Making calls with the headset

 

Functions 

Status of headset

 

Operation

 

Redial Last number

 

Standby mode

 

Short press MFB twice quickly

 

Volume up

 

Conversation mode

 

Short press “+” button

 

Volume down

 

Conversation mode

 

Short press “ - “ button

 

Answering calling

 

Ringing

 

Short press MFB button

 

Reject calling

 

Ringing

 

Press and hold MFB button for 

one second, and release 

until you hear indication 

sound

 

 

 

 

 

Notes: 

Not all the mobile phones support all the functions listed above. Please refer to the 

instruction of your mobile phone.    Some functions and indication tones may vary with mobile phones 

 
 
 
 

Playing Music 

To use the wireless headphones to listen to music form a bluetooth device, you must first perform pairing with the 

bluetooth device using the A2DP audio profile.   

 

Controls when listening to music 

( + ) button 

Press once: increase the volume 

Press and hold: advance to next track or chapter 

( - ) button 

Press once: decrease volume 

Press and hold: return to beginning of track or chapter. 

 

MFB button 

Press once: play/pause 

 

  When sound volume is set to maximum or minimum levels a beep sound will be produced from the headphones. 

  Depending on the specifications of the connected bluetooth device, the controls noted above and controls on the 

bluetooth device may not be supported. 

 

Disconnecting from the bluetooth device 

   

  Hold the wireless headphones MFB button depressed for about five seconds to turn off the power. 

 

 

 

 

Summary of Contents for VT-H78

Page 1: ...temporarily discontinue use in potentially hazardous situations Don not use ht headphones while ridding a bicycle motor bike or while driving a car The use of headphones may create a traffic hazard and is illegal in many areas Not exposure or toss headphone into a fire It will probably caused an accident Don t disassemble headset any if you are not an expert Place out of reach of small children to...

Page 2: ...P AVRCP HFP HSP Operating distance 10M Battery 320mA Charging time about 2 hours Charging current 220mA Music playing time about 16 hours 50 volume noise canceling off ANC working time about 8 hours Driver Unit Ø 40mm Sensitivity 105dB 1mW S P L at 1KHz Frequency Range 20Hz 20KHz Rated Power 10mW Max Power 20mW ...

Page 3: ... or more to power on and enter the pairing mode The pairing mode is confirmed by the LED indicator s flashing blue and red 2 When in the paring mode if pairing is not completed within about five minutes the power will automatically turn off 3 Turn on the power to the bluetooth device you wish to pair with and begin pairing search for this unit from the paired bluetooth device Set the bluetooth dev...

Page 4: ...o use the wireless headphones to listen to music form a bluetooth device you must first perform pairing with the bluetooth device using the A2DP audio profile Controls when listening to music button Press once increase the volume Press and hold advance to next track or chapter button Press once decrease volume Press and hold return to beginning of track or chapter MFB button Press once play pause ...

Page 5: ...onfirm that connection with bluetooth device is set for profile A2DP Confirm that the connected music playback device is set for PLAY Confirm that sound volume controls on both wireless headphones and music playback device are set to appropriate levels Sound is distorted when playing music Check that no other devices utilizing the 2 4GHz wavelength are nearby and that no obstructions black the sig...

Page 6: ...o try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Caution Any changes or modifications to this device n...

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