Sketch Map Functional KeyVolume+ -/Switch to the next or the previous Multifunction Button(MFB)On/Off /Answering Calls Charging port Microphone F4 Specification Size103*91*30mmWeight12g Bluetooth VersionV3.0 Surporting ProtocalHSPHFPA2DP AVRCP Transmission Distance10M Match Code NameF4 Plus Password0000 Frequency Response20Hz20KHz Music playing time around 5 hours Calling timearound 5 hours Stand-by timearound 150 hours Working temperature040 Storage temperature-2060 Operating Instruction Starting up When the power is off, keep pressing the MFB for 3 Secs, the trumpet would utter a warning sound, the blue light would flash. When its done, the headphone will connect automatically to the bluetooth device. Shutting down When the power is on, keep pressing the MFB for 4 Secs,the trumpet would utter a warning sound, the red light would flash. At the same time the working connection would disconnect. Answering a call When the device stand by or playing music, press the MFB to answer a call. When the call is finished, music playing will resume. Ending a call When the call is on, press the MFB and end the call, music playing would resume. Rejecting a call When a call comes and you dont want to answer it, press the MFB for 2 Secs to reject it. Pairing When the power is off, press the MFB for 6 Secs, the trumpet would utter a warning sound, the red light and the blue light flash alternately, which means the device is under pairing condition. After three minutes pairing, the pairing process would stop automatically if no device connected. Mute mode When on a call, press the volume +/- button for 2 Secs, you can enter the mute mode. Every 10 seconds there would be an sound reminding you are in a mute mode. 5022A3705 Room3705, United Plaza A, 5022 Binghe Road ,Futian District,Shenzhen,518035 China. Operating Instruction Remove the mute mode When in a mute mode, press the Volume +/- button for 2 secs and you can disfunction it Connecting to two devices a.When one device is connecting to the headset, disconnect it b.Press the volume +/- button simultaneouslythe red light and blue light would flash alternately, reentering to the pairing status. c.Swith on the bluetooth of the second device and start searchingthe F4would show up on the screen,connect it. d.Connect the first device to the headset. e.Connection completed. Call forwarding While on the line with the first call and the second call come in, press the MFB for 2 Secs , reject the second call and resume the first. Press the volume
+/- simutaneously you can answer the second call and keep the first waiting. Repeat this movement and you press+/- back to the 1st phone call. can resume the first call. If you just press the MFByou cut the first call and answer the second. Redialing When the headset stand by or is playing music, press the MFB twice quickly, the phone will redial your most recent dial and the music will stop. Voice dialing When the device stands by, keep pressing the MFB, you can activate the voice dialing function of your phone.For further details, please refer to the manual of you phone. Cancelling voice dialing Press the MFB when you are voice dialing and Swithing the call between phone and head set when on a call,press the MFB twice quickly, the call will switch to your phone. Repeat this movement and you can switch it back. Operating Instruction Reconnecting If the headset and your phone disconnect, press the MFB and it will reconnect. Music pause and playing While music is playing, press the MFB once and music pause.Press it again and it resumes. Volume up Press the + button and the volume turn up. When it there would be a reaches the maximum, Volume down Press the - button and the volume turn down. When it reaches the minimum, there would be The previous music Press the - button for 2 Secs and the music will switch to the previous piece. The next music Press the + button for two Secs and the music will switch to the next piece. Indication Status of the LED light. ChargingRed light on Charging CompletedBlue light on Standby mode and connecting modeBlue light flash twice within 5 Secs On the lineBlue lighe flash twice within 3 secs. Calls comeBlue light flash rapidly Low BatteryRed light flash once with 20 S PairingRed light flash light and blue Pakage Contents Headset x1Charging line x1Specification x1 Warranty Card X1 Matters need attention 1. Dont carshstrikedropdistort the headset and dont disassemble it 2. Stay away magnetic field and moisture and keep it under the temprature of -10-60 3. Dont use corrosive liquid to clean the headset 4. Dont overcharge the battery. 5.Charge and release the bettery regularly to FCC WARNING This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired operation. NOTE 1: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.