User Manual
GBR600
Bluetooth Active Noise Reduction Headphones
Figure 1
GBR600 Reference View
General Description
The first Bluetooth Active Noise Reduction Headphones in the world, it combines
Bluetooth Stereo Headset with -15dB (Max) noise reduction capability.
1．This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is
encouraged to 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.
2．You are cautioned that changes or modifications not expressly approved by
the part responsible for compliance could void the user’s authority to operate the
equipment.
3．Operation is subject to the following two conditions:
1) this device may not cause interference and
2) this device must accept any interference, including interference that may
cause undesired operation of the device.
4．FCC RF Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. End users must follow the specific operating
instructions for satisfying RF exposure compliance. This transmitter must not be
co-located or operating in conjunction with any other antenna or transmitter.
Headset Operation
Figure 2
Headset Left Side View
1. Active Noise Reduction Function Mode:
The three stages of the main power switch
Push the switch in 1st position – All function OFF
Push the switch in 2nd position - ANR function OFF & BT power ON.
Push the switch in 3rd position - ANR function ON & BT power ON
Figure 3
Headset Right Side View
2. Powering the headset ON and OFF
2.1 To turn on BT function:
Press down (about 3 seconds) MFB until the LED flashes blue.
2.2 Pairing Mode:
Press down (about 5 seconds) MFB until the LED flashes red/blue. (After about 3
seconds, the LED flashes blue [standby]; keep the button pressed until the LED
flashes red/blue.) Important: You cannot go from standby mode to pairing mode.
You must turn off the BT function, and then press down MFB to be in pairing
mode.
2.3 To turn off the BT function
Press down (about 5 seconds) MFB until you hear a beep. Then release MFB.
The LED flashes red five times and the BT function turns off.
3. Digital Volume Control
3.1 Volume “+”:
Short press the “+ button “ to increase the volume level. When you listen “DingDong”, it means that the volume is already the maximum.
3.2 Volume “-”:
Short press the “- button “ to decrease the volume level. When you listen “DingDong”, it means that the volume is already the minimum.
4. Music Function Control
The Music Function Control only works with Bluetooth devices that support the
A2DP profile.
4.1 Next Song
Long press the “+ button “ and listen “Do” sound, then you may switch to the
next song.
4.2 Previous Song
Long press the “- button “and listen “Do” sound, then you may switch to go back
the previous song.
4.3 Play and Pause Control
Press the “Pause/Play” button to pause/play music.
5. Audio Mode (When plug-in the audio cable)
The stage of main switch in ANR function “ON”. LED on steady green.
The stage of main switch in ANR function OFF & BT power ON. LED is not ON.
In these two modes, user can plug in the audio cable for listening music.
P.S. The Bluetooth Technology will be disable when plug-in the audio cable.
All the function key regarding the BT Technology will be disabled included
the volume button function.
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