XiNOWy V4C Referee Headset Bluetooth Intercom

1. Introduction and Overview

The XiNOWy V4C is a professional full-duplex Bluetooth intercom system designed for referees and other team communication needs. It facilitates clear, real-time communication among 2 to 4 individuals over a distance of up to 1200 meters. Featuring a stable Bluetooth chip, waterproof design, and FM radio, the V4C ensures reliable performance in various environments.

Note: If used with helmets, this device is only applicable to semi-covered helmets or bicycle helmets.

2. Package Contents

Please check the package carefully to ensure all items are present:

• 1 or 2 x V4C Intercom Unit (depending on single or double pack)
• 1 or 2 x Referee Headset
• 1 or 2 x Armband Bag
• 1 or 2 x USB Charge Cable
• 1 x User Manual

3. Product Features

• Full Duplex Communication: Allows simultaneous speaking and listening for 2-4 users.
• Extended Range: Max talking range of 1200 meters (3937 feet).
• High Speed Operation: Supports communication at speeds up to 120 Km/h.
• Long Battery Life: 850mAh Li-polymer battery provides up to 12 hours of talk time and 15 days (450 hours) of standby time.
• Waterproof Design: IPX5 waterproof rating for use in various weather conditions.
• Stable Bluetooth 3.0: Equipped with a CSR BC5 chip for stable and reliable wireless connection.
• FM Radio: Built-in FM radio for entertainment or news.
• DSP Noise Reduction: Enhances call clarity by reducing background noise.
• Automatic Call Receiving: Safely receive mobile phone calls.
• Stereo Audio: Supports strong stereo music/audio from mobile phones, MP3 players, or GPS devices via A2DP.

4. Specifications

5. Setup

5.1 Charging the Unit

The audio output port (headphone jack) on the host unit also serves as the charging port. Connect the provided USB charge cable to this port and plug the other end into a compatible USB power source (e.g., wall adapter, computer USB port).

5.2 Turning On/Off

• To Turn On: Press and hold the 'Motorcycle' button (Power ON/Play) for approximately 2 seconds. The red light will turn on, then release when the blue light flashes. The unit is now in ON mode.
• To Turn Off: Press and hold the 'Motorcycle' button until the unit powers down.

5.3 Connecting the Headset

Insert the single earphone plug of the referee headset into the audio output port on the bottom of the V4C host unit.

5.4 Wearing the Armband

Place the V4C intercom unit into the provided armband bag. Secure the armband to your arm using the adjustable strap. This allows for convenient access and secure placement during use.

6. Operating Instructions

6.1 Controls Overview

• Motorcycle Button: Power ON/OFF, Play/Pause.
• FM Button: FM radio ON/OFF.
• 'A' Button (Rider A): Used for pairing and intercom activation.
• 'B' Button (Rider B): Used for pairing.
• Volume - / Volume + Buttons: Adjust volume levels.
• LED Indicator: Shows device status (red/blue flashes).

6.2 Two-Way Intercom Pairing

To pair two V4C units for intercom communication:

1. Ensure both Device 1 and Device 2 are turned off.
2. Press and hold the 'Motorcycle' button on both Device 1 and Device 2 simultaneously until both intercoms flicker blue light.
3. While still holding the 'Motorcycle' button, press and hold the 'A' button on Device 1 and the 'B' button on Device 2 until the indicator lights flicker between red and blue. Then release all buttons.
4. Briefly press the 'A' button on Device 1 for 1 second to initiate the search for Device 2.
5. After 2-5 seconds, both devices' blue lights will flash at the same frequency, indicating successful pairing.
6. To enter intercom status, simply press the 'A' button on Device 1.

6.3 Four-Way Intercom Pairing

To establish a 4-way intercom connection (Devices 1, 2, 3, and 4):

1. Pair Device 1 with Device 2: Follow the 'Two-Way Intercom Pairing' steps above to pair Device 1 and Device 2.
2. Pair Device 3 with Device 4: Similarly, pair Device 3 and Device 4 using the same two-way pairing method.
3. Pair Device 2 with Device 3: Now, pair Device 2 with Device 3. This is done in the same manner as two-way pairing, using the 'A' button on both Device 2 and Device 3.
4. Activate 4-Way Intercom: After successful pairing of all units, press the 'A' button on Device 1. Approximately 5 seconds later, Devices 1, 2, and 3 will enter intercom mode. Then, press the 'A' button on Device 4 to complete the 4-way intercom pairing.

Remark: To avoid accidentally exiting the intercom channel, do not touch any buttons on the devices once the intercom is established.

Switching Intercom: After initial pairing, you do not need to repair. Simply press the intercom button to switch between talking groups as marked.

Alternative 4-Way Activation: Turn on all 4 devices by pressing their 'Motorcycle' buttons. Then, press the 'A' button on Device 1. After 5 seconds, press the 'A' button on Device 4.

7. Maintenance

• Cleaning: Wipe the unit with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
• Water Resistance: The V4C has an IPX5 waterproof rating, meaning it is resistant to water jets from any direction. It is suitable for use in rain but should not be submerged in water.
• Battery Care: For optimal battery life, charge the unit regularly. Avoid fully discharging the battery frequently. If storing for an extended period, charge the battery to about 50% and store in a cool, dry place.
• Temperature: Operate and store the device within the specified temperature range of -10°C to +45°C. Extreme temperatures can affect battery performance and device longevity.
• Storage: Store the unit and accessories in a dry place, away from direct sunlight and extreme temperatures.

8. Troubleshooting

• Unit does not turn on: Ensure the battery is charged. Connect the unit to a power source using the USB cable and try turning it on after a few minutes of charging.
• Cannot pair devices:
  • Ensure both units are fully charged and within close proximity during the pairing process.
  • Follow the pairing instructions carefully, paying attention to button press durations and indicator light sequences.
  • If previous pairing attempts were unsuccessful, try resetting the units by turning them off and on again before attempting to pair.
• No sound or poor sound quality:
  • Check that the headset is securely plugged into the audio output port.
  • Adjust the volume using the Volume + / Volume - buttons.
  • Ensure devices are within the effective intercom range (1200m) and there are no major obstructions.
• Intercom channel disconnects or jumps: Avoid touching any buttons on the device once an intercom connection is established, as this can disrupt the channel.
• Compatibility with other brands/models: The V4C is designed for optimal performance with other V4C units. Compatibility with intercoms from other brands (e.g., EJEAS V4C PLUS, EJEAS V6 PLUS) is not guaranteed and may vary.

9. User Tips

• Maximize Team Communication: The V4C excels in 4-way intercom scenarios, making it ideal for referee teams or small groups requiring constant, clear communication. Practice the 4-way pairing process to ensure smooth setup before critical use.
• Stay Connected on the Move: The 1200m range and high-speed operation ensure that communication remains clear even when users are moving rapidly across a large area.
• Convenient Wearing: Utilize the included armband to securely wear the intercom unit, keeping your hands free and the device easily accessible for adjustments.
• Helmet Compatibility: Remember that for helmet use, this device is best suited for semi-covered or bicycle helmets.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please contact your original seller or the manufacturer directly. Keep your proof of purchase for any warranty claims.

An additional user manual in PDF format can be viewed or downloaded for more detailed instructions: View User Manual (PDF)