GUV3050 - Quick User Guide

  • Updated on February 28, 2022

  • Always store the headset with the power off and safely protected.
  • Do not expose this device to temperatures outside range of -10° to 40° for operating and -20° to 50° for storage.
  • Avoid using the headset for too long and/or with high volume, this may affect the hearing. • Use a recommended adapter to charge.
  • Dispose of batteries according to local laws & regulations. Please recycle if possible. Do not dispose of the batteries as household garbage or into the fire to avoid explosion.
  • Do not attempt to remove or replace the battery on their own. Such operations may damage the device

Package Contents


Headset Components


Wear the GUV3050 Headset

  1. GUV3050 BT headset can be worn only on the right.
  1. Adjust the Headband.
  1. Adjust the headband until it is comfortable, ideally ensuring that there is virtually no pressure felt on the ears.

Connect the GUV3050 Headset

  1. Ensure that the headset is switched on.
  2. Connect the BT dongle into an USB port on your PC. The headset and BT dongle are already pre-connected.
  1. Hold the On/Off/Connect switch in the connect position for 2 seconds until you hear the voice guided instruction. The Bluetooth indicator will flash in blue.
  2. Follow the voice guide instruction to connect.

Charge the Battery

Option 1: The headset battery can be charged when connected to a PC using an USB cable (provided), or using any micro-USB charger (not provided).

Option 2: Plug the charging base into a powered USB port and then dock the headset.


How to use the Headset

FunctionActionLED Status
Headset onSlide the On switchGreen light flash twice in succession
Headset offSlide the Off switchRed light flash once in succession
PairingSlide the Pair buttonBlue Light flash
Green light flash twice and blue light flash
once in succession
StandbyBlue light flash 1 time per 8 secs
Adjust VolumeTap the Volume UP or
Volume Down Button
Answer/End CallTap the Multi-function
Double-tap the Multi-function button
Press and hold (2 secs) the volume down button

How to manage multiple calls

Reject incoming call, when
on a call

Double-tap the Multi-function button

End current call and
answer incoming call

Tap the Multi-function button

Put current call on hold
and answer incoming call

Press and hold (2 secs) the volume down button

Switch between held call
and active call

Press and hold (2 secs) the volume
down button


Common part: 

This equipment complies with radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

U.S. FCC Part 15 Regulatory Information

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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Note: 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.

Canada Regulatory Information

This device complies with Innovation, Science, and Economic Development Canada license-exempt RSS standard(s). 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.

Le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne doit pas produire de brouillage, et (2) l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.

The device is compliance with RF exposure guidelines, users can obtain Canadian information on RF exposure and compliance.

Le présent appareil est conforme aux directives d’exposition RF, les utilisateurs peuvent acquérir les informations correspondantes sur l’exposition aux radiofréquences et sur la conformité de l’appareil.

Canada Regulatory Information

Support Frequency Bands and Power:

  • BT_BR+EDR < 2dBm
  • BT_BLE < 2dBm

The simplified EU declaration of conformity referred to in Article 10(9) shall be provided as follows: Hereby, [Grandstream Networks, Inc.] declares that the radio equipment type [GUV3050] is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address:


For Warranty and RMA information, please visit

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