1. Introduction
The GOREF Football Referee Intercom Headset is a full-duplex Bluetooth 5.1 communication system designed for referees and other professionals requiring clear, simultaneous communication. It supports up to 4 users for group talking with a maximum communication distance of 1200-1500 meters in ideal conditions. This system ensures stable communication with Bluetooth low energy technology, high-speed transmission, and stronger signal.
Key Features:
- Full-duplex wireless communication among up to 4 users.
- Maximum communication distance of 1200-1500 meters (ideal situation).
- Unique microphone off function (mute/disable microphone).
- Noise reduction (CVC noise cancellation) and 3D sound effect.
- Hands-free Bluetooth compatibility.
- Built-in battery for extended talk and standby time.
- Waterproof grade IP65.
Note: GOREF intercom units cannot be paired with mobile phones.
GOREF Intercom Units with a football player in the background, illustrating its use in sports.
2. Package Contents
Please check the box for the following items:
- 1 x GOREF Main Unit
- 1 x Bluetooth Referee Headset (Earpiece with microphone)
- 1 x Micro-USB Charging Cable
- 1 x User Manual
- 1 x Armband Case
- 1 x Wrap Box (Zipper Box)
Visual representation of all items included in the GOREF package.
3. Product Overview
Familiarize yourself with the main unit and its components:
Diagram showing the GOREF unit with labeled controls and interfaces.
Controls and Interfaces:
- Power On/Off Button: Also controls volume up.
- Volume + Button: Increases volume.
- Volume - Button: Decreases volume.
- LED Indicator: Shows device status (power, pairing, connection).
- A Button: Intercom A.
- B Button: Intercom B.
- Micro-USB Port: For charging.
- Mute Button: Unique microphone off function.
- Earpiece Interface: 3.5mm jack for connecting the headset.
Detailed view of the GOREF unit, including dimensions and port locations.
4. Specifications
| Feature | Specification |
|---|---|
| Bluetooth Version | 5.1 |
| Audio Format | SBC & AAC |
| Technical Support | CVC noise reduction, 3D sound effect |
| Intercom Mode | 4 people talk at the same time |
| Max Talking Range | 1200-1500 meters (in an ideal situation) |
| Battery Type | Built-in Lithium polymer battery (3.7V / 500mA) |
| Charger Specification | DC5V / 1A |
| Talk Time | More than 18 hours |
| Standby Time | 350 hours or more |
| Charging Time | Approx. 2.0 hours |
| Waterproof Grade | IP65 |
| Operating Temperature Range | -10°C to 50°C |
| Charging Interface | Micro-USB |
| Item Weight | 0.3kg |
| Item Dimensions (L x W x H) | 5.4cm x 8.9cm x 2.2cm |
Illustration of the advanced Bluetooth 5.1 technology for stable and strong signal.
5. Setup and Basic Operations
5.1 Armband Installation
To comfortably wear the GOREF unit during activities, use the provided armband:
- Insert the GOREF unit into the armband pouch.
- Secure the armband around your arm.
- Adjust for a snug fit.
Step-by-step guide for installing the GOREF unit into the armband.
5.2 Operation Instructions
The GOREF unit features intuitive controls:
- Single-click: Short press and release.
- Double-click: Two quick presses.
- 1s Long Press: Press and hold for approximately 1 second.
- Press Simultaneously: Press two buttons at the same time.
- 5s Press Simultaneously: Press and hold two buttons for 5 seconds.
Visual guide to button press types for GOREF unit operation.
5.3 Power On/Off
- Power On: Long press the Power Button until the blue light appears.
- Power Off: After powering on, long press the Power Button until the light turns off.
5.4 Volume Control
- Volume Up: Single-click the Vol+ Button.
- Volume Down: Single-click the Vol- Button.
5.5 Microphone Mute Function
The GOREF unit features a unique microphone off function:
- Mute Microphone: Double-click the Mute Button. When muted, you can only hear others, and others cannot hear your voice.
- This function allows you to temporarily disable your microphone without disconnecting from the intercom group.
5.6 Charging
- Connect the Micro-USB charging cable to the unit's charging port and a power source (DC5V/1A).
- Charging Indicator: Blue light is on during charging.
- Full-charged Indicator: Light turns off when fully charged.
5.7 Reset the Device
- To reset the device, press the Volume Up and Volume Down buttons simultaneously for 5 seconds until the red light flashes.
5.8 Power Enquiry
- After powering on, double-click the Power Button to check the battery status.
5.9 Reconnection
- After all units are paired, double-click the B Button on the first unit to reconnect all units and sync.
6. Intercom Pairing
The GOREF system supports 2-way, 3-way, and 4-way intercom pairing.
6.1 Two-way Pairing
- Long press the Power Button on each unit for 3 seconds to power them on. (Blue light will flash).
- Long press the B Button of Unit 1 and the A Button of Unit 2 until both red/blue lights flash, entering pairing mode.
- Both units will auto-search and pair together. You will hear "the Intercom pairing successful".
6.2 Three-way Pairing
- Repeat steps 1 and 2 of "Two-way Pairing" for Unit 1 and Unit 2.
- Long press the B Button on Unit 2 and the A Button on Unit 3 until both red/blue lights flash, entering pairing mode.
- Unit 2 and Unit 3 will auto-search and pair together. Meanwhile, Unit 1 loses connection temporarily.
- Turn off all units, power on, and then double-click the B Button of Unit 1 to reconnect 3 units together and sync.
6.3 Four-way Pairing
- Repeat steps 1, 2, and 3 of "Three-way Pairing" for Units 1, 2, and 3.
- Long press the B Button on Unit 3 and the A Button on Unit 4 until both red/blue lights flash, entering pairing mode.
- Unit 3 and Unit 4 will auto-search and pair together. Meanwhile, Unit 1 and Unit 2 lose connection temporarily.
- Turn off all units, power on, and then double-click the B Button of Unit 1 to reconnect 4 units together and sync.
Visual guide for 2-way, 3-way, and 4-way intercom pairing procedures.
Video demonstrating the GOREF intercom system, including power on/off, volume control, mute function, and four-way pairing process.
7. Operating Modes
7.1 Full-Duplex Communication
The GOREF system provides full-duplex communication, allowing all connected users to talk and listen simultaneously, similar to a phone call. This ensures seamless and natural conversation within the group.
7.2 Multi-way Intercom
The system supports up to 4 devices connected at the same time, enabling group talks without restrictions. This is ideal for team coordination in various scenarios.
Diagram illustrating multi-way intercom functionality with up to 4 connected devices.
8. Maintenance and Care
- Cleaning: Wipe the unit with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Water Resistance: The unit has an IP65 waterproof rating, meaning it is protected against dust and low-pressure water jets. Avoid submerging the device in water.
- Storage: Store the unit in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, charge the unit regularly, even if not in frequent use. Avoid fully discharging the battery for extended periods.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on | Low battery; Power button not pressed correctly | Charge the unit; Long press the Power Button for 3 seconds |
| Cannot pair units | Units not in pairing mode; Too far apart | Ensure both units are in red/blue flashing pairing mode; Bring units closer together |
| No sound or low volume | Volume too low; Microphone muted; Headset not connected properly | Increase volume; Double-click Mute Button to unmute; Reconnect headset securely |
| Intercom connection drops | Out of range; Obstructions; Interference | Move closer to other units; Reduce obstructions; Avoid strong electromagnetic fields |
| Microphone not working | Microphone muted; Microphone faulty; Headset not connected | Double-click Mute Button to unmute; Try another headset if available; Ensure headset is fully plugged in |
10. User Tips
- For optimal performance, ensure all units are fully charged before use.
- When pairing multiple units, follow the sequential pairing steps (2-way, then 3-way, then 4-way) carefully.
- The unique microphone mute function is useful for private conversations or when you don't want your background noise to disturb others.
- While the device is waterproof (IP65), avoid prolonged exposure to heavy rain or submersion to ensure longevity.
- The system is designed for clear communication in noisy environments thanks to its CVC noise reduction.
11. Applications
The GOREF Football Referee Intercom Headset is versatile and can be used in various scenarios requiring clear, multi-person communication:
- Football and other sports refereeing
- Motorcycle riding (interphone)
- Construction sites and engineering fields
- Concerts and event scheduling
- Aerial photography and drone operation
- Port scheduling and logistics
- Any team-based activity requiring real-time communication
Examples of various professional and recreational settings where the GOREF intercom can be utilized.
12. Warranty and Support
For any issues or questions regarding your GOREF Football Referee Intercom Headset, please refer to the seller's warranty policy or contact customer support for assistance. Keep your purchase receipt for warranty claims.
