SYNCO Xtalk Master Wireless Headset Intercom System

1. Introduction

Thank you for choosing the SYNCO Xtalk Master Full Duplex Wireless Intercom Headset System. This manual provides detailed instructions for the proper use, setup, operation, maintenance, and troubleshooting of your device. Please read this manual carefully before use and follow all instructions mentioned herein to ensure optimal performance and longevity of your product.

The Xtalk Master series represents a significant advancement in professional team communication, featuring proprietary MasterFree™ 2.0 algorithm for hassle-free connectivity, support for up to 8 simultaneous users, USB-C UAC integration for remote participants, a 500m range, ultra-low 45ms latency, and advanced noise cancellation. It also includes smart A/B grouping and is managed via the SYNCOLink app.

2. Setup

2.1. Package Contents

The Xtalk Master system comes in different configurations (XM4 for 4 headsets, XM8 for 8 headsets). Please verify all components are present upon unboxing.

2.2. Components Overview

Familiarize yourself with the headset components:

1. Indicator on Microphone: Shows microphone status.
2. 3.5mm Mic In Port: For external microphone connection (if applicable).
3. Power On/Off Toggle: Slide switch to power the headset.
4. Button A: Multi-function button for pairing and grouping.
5. Button +: Volume up and PTT mode activation.
6. Button B: Multi-function button for pairing and grouping.
7. Button -: Volume down and noise cancellation control.
8. Indicator on Headset: Shows headset status (power, connection, etc.).
9. USB-C Port: For charging and UAC connectivity.

2.3. Powering the Headset

The headset uses a rechargeable battery. Ensure batteries are charged before first use.

2.3.1. Battery Installation and Charging

1. Push down the toggle of the battery case and pull the case door outward to open.
2. Slide the rechargeable battery into the charging slot.
3. Close the battery case door.
4. Connect the headset to a power source via the USB-C port for charging. The charging time is approximately 2.5 hours.
5. A voice prompt "Low battery" and a flashing red light indicate battery level is below 20%. Replace or recharge the battery.

2.3.2. Power On/Off

• Power On: Push the power toggle switch upwards.
• Power Off: Push the power toggle switch downwards.

2.4. Pairing and Unpairing

Products are pre-paired from the factory and ready to use, supporting group connections for up to 8 people. If you need to reset or re-pair headsets, follow these steps:

2.4.1. Pairing All Headsets (Up to 8)

1. First Headset: Long press both Button A and Button B on ONE headset. Release after hearing "Connecting and Pairing".
2. Enter Pairing Mode: Long press Button A again on the first headset. Release after hearing a "beep". The headset's red light will be steady, indicating it's in intercom mode.
3. Subsequent Headsets: For all other headsets, long press both Button A and Button B. Release after hearing "Pairing Succeed".
4. Indicator: A flashing green light means "Not connected". A solid green light means "Connected".
5. Activation: If 8 headsets are paired, the first paired headset automatically enters intercom mode. If less than 8 headsets are paired, restart the first paired headset to activate intercom mode after all pairing is complete.

2.4.2. Unpairing a Headset

• Long press Button A on the headset you wish to unpair. Release after hearing "Unpairing". The headset will be unpaired and disconnected.

2.5. APP Connection (SYNCOLink App)

The SYNCOLink app allows for intelligent team management, custom groups, private chats, OTA firmware updates, and voice pack switching.

1. After powering on, the headset enters APP pairing mode (lasts 5 minutes).
2. Enable Bluetooth on your smartphone.
3. Open the SYNCOLink app.
4. Select the device name that matches the numbers displayed on your headset.
5. Confirm the connection within the app.
6. App Connected: Blue light steady.
7. App Not Connected: Blue light flashing.
8. Firmware Updating: Yellow light steady.

3. Operating Instructions

3.1. A/B Grouping

The system supports A/B grouping, allowing users to join Group A, Group B, or both simultaneously. The headset remembers the last group memory and will auto-join upon power-on. The indicator light turns on after joining a selected group.

3.1.1. Enter A/B Group

• Long press Button A/B. Release after hearing "Group A" or "Group B".

3.1.2. Exit A/B Group

• Long press Button A/B. Release after hearing "Beep-Beep".

3.2. Volume Settings

• Short press the + button to increase volume.
• Short press the - button to decrease volume.
• There are 5 volume levels. A "Beep" sound indicates maximum or minimum volume.

3.3. Noise Cancellation (ENC 2.0)

The Xtalk Master features advanced ENC 2.0 algorithm for crystal-clear communication by suppressing background noise.

• Activate/Deactivate: Long press the - button for 3 seconds to turn the noise cancellation feature on or off.
• Indicator: Green light steady for Noise Cancellation Off. Orange light steady for Noise Cancellation On.

3.4. Mute/Unmute

• Rotate the boom arm of the microphone upwards to mute.
• Rotate the boom arm of the microphone downwards to unmute.

3.5. PTT Mode (Push-To-Talk)

PTT mode allows you to speak while muting other headsets, which remain available for listening.

• Enter PTT Mode: Press and hold the + button. Other headsets will be muted for speaking.
• Exit PTT Mode: Release the + button. Other headsets will resume intercom function.

3.6. Real-Time Monitoring

The headset features a 3.5mm TRS port for direct audio monitoring.

• Connect your camera, camcorder, or other recording device to the headset's 3.5mm TRS port.
• This port is for monitoring audio from the device only and is not an audio output port from the headset.

4. Maintenance and Care

• Keep the product in a dry, clean, dust-free environment.
• Keep corrosive chemicals, liquids, and heat sources away from the product to prevent mechanical damage.
• Use only a soft and dry cloth for cleaning the product.
• Do not attempt to disassemble the product. Doing so voids the warranty.
• If any malfunctions occur, have the product checked or repaired by authorized technicians.
• Failure to follow all instructions may result in mechanical damage.

5. Troubleshooting

• No Power: Ensure the battery is correctly installed and fully charged. Check the power toggle switch position.
• No Sound/Poor Sound Quality:
  • Check volume settings on all headsets.
  • Ensure headsets are properly paired and within the 500m operating range.
  • Verify noise cancellation is enabled if in a noisy environment.
  • Check microphone boom arm position (unmuted).
• Pairing Issues:
  • Ensure all headsets are in pairing mode as per instructions.
  • If resetting the group, follow the re-pairing steps carefully.
  • Restart the first paired headset if less than 8 units are paired to activate intercom mode.
• App Connection Problems:
  • Ensure Bluetooth is enabled on your smartphone.
  • Verify the headset is in APP pairing mode (lasts 5 minutes after power-on).
  • Check that you are selecting the correct device name in the app.
• Limited Range: Ensure there are no significant obstacles between headsets. Signal strength can be affected by walls, large metal structures, and other RF interference.

6. Specifications

7. User Tips

• Pre-Charge: Always ensure all headset batteries are fully charged before a critical production or event to avoid interruptions.
• Range Awareness: While the system offers a 500m range, environmental factors like thick walls or heavy interference can reduce it. Test your communication range in the actual environment before use.
• App Utilization: Make full use of the SYNCOLink app for advanced team management, custom group creation, and ensuring your firmware is always up-to-date.
• Microphone Placement: For optimal clarity, position the microphone boom arm correctly near your mouth, and utilize the included mic windshields to reduce plosives and wind noise.
• Group Management: Use the A/B grouping feature to segment teams effectively for complex productions, ensuring clear communication channels.

8. Warranty and Support

8.1. Warranty Period

• Customers are entitled to free replacement or repair service for quality defects under normal use within 30 days of product receipt.
• Original SYNCO products are entitled to a 12-month limited warranty service. The warranty period begins on the date of purchase of brand-new, unused products by the first end-user.
• Within the warranty period, if the product defect or failure is attributable to material defection or technological problem, the defective product or defective part will be repaired or replaced without charge (service and materials fee).

8.2. Warranty Exclusions and Limitations

The warranty does not cover:

• Faults resulting from inappropriate use or not following operation specifications.
• Artificial damage (e.g., crash, squeeze, scratch, soaking).
• Modifications to a product by its user or a third party without prior written consent of SYNCO (e.g., replacement of element or circuit, label alteration).
• Product code inconsistent with the warranty certificate, or altered/torn off.
• All consumable accessories attached to a product (e.g., cable, wind muff, battery).
• Faults as a result of force majeure (e.g., fire, flood, lightning).

8.3. Warranty Claim Procedure

1. If any failure or problem occurs, contact a local agent for assistance or SYNCO's customer service via email at support@syncoaudio.com.
2. Retain your sales receipt and warranty certificate as proof of purchase. Missing documents may result in chargeable service.
3. If the product is out of warranty coverage, service and parts will be charged.

8.4. Manufacturer Contact

Guangzhou Zhiying Technology Co., Ltd

• Address: Room 2401, 24/F, South Tower, Lisheng Plaza, No. 68 Huadi Avenue, Liwan District, Guangzhou, China, 510000
• Email: support@syncoaudio.com
• Website: www.syncoaudio.com
• Facebook: https://www.facebook.com/syncomicrophones

For the most detailed diagrams and additional information, please refer to the official user manual PDF available at this link.