ZONGJI X15

ZONGJI X15 TWS Bluetooth Earphones Instruction Manual

Model: X15 | Brand: ZONGJI

Introduction

Welcome to the instruction manual for your new ZONGJI X15 TWS Bluetooth Earphones. These wireless in-ear headphones are engineered to provide a superior audio experience, especially for gaming, with features like ultra-low latency and precise sound positioning. They also deliver high-quality audio for music and clear communication for calls. This manual will guide you through the setup, operation, maintenance, and troubleshooting of your X15 earbuds.

Package Contents

Please check the package to ensure all the following items are included:

  • User Manual
  • Charging case
  • Charging Cable

Specifications

FeatureDetail
Brand NameZONGJI
ModelX15
Item ConditionNew
MaterialPlastic
Sound IsolatingYes
CategoryEarphones & Headphones
Charging MethodCharging case
Driver Diameter20mm
Impedance Rangeup to 32 Ω
Bluetooth Version5.1
FeaturesWaterproof, With microphone, Amazon Alexa Support, Apple Siri Support, Active Noise Cancelling, Dual Connection
CodecsAAC, Apt-X, sbc
With MicrophoneYes
Is wirelessYes
Support APPYes
WaterproofYes
Line Length1m
Sensitivity123dB
FunctionFor Internet Bar, Monitor Headphone, For Mobile Phone, HiFi Headphone, Kids' Headphones
Active Noise-CancellationYes
Volume ControlYes
Control ButtonYes
Vocalism PrincipleDynamic
Wireless TypeBluetooth
CommunicationWireless
StyleIn-ear
CertificationCE
OriginMainland China
Resistance32Ω
Working Time (Earbuds)About 5-6 hours (standalone)
Standby TimeAbout 180 hours
Speaker Size12mm
Frequency Response20Hz-20KHz
Body Weight80g

Note: While some promotional images indicate Bluetooth 5.2 or 5.0, the primary product specifications list Bluetooth Version 5.1.

Setup and First Use

Charging the Earbuds and Case

Before using your X15 earbuds for the first time, it is recommended to fully charge both the earbuds and the charging case.

  • Place the earbuds securely into their respective slots in the charging case.
  • Connect the provided charging cable to the charging port on the case and then to a USB power source (e.g., wall adapter, computer USB port).
  • The LED power display on the charging case will show the current battery percentage. A reading of "100" indicates a full charge.
X15 TWS Earbuds in charging case with 100% battery display
The X15 TWS earbuds in their charging case, showing the digital battery display at 100% and indicating a 90-degree smart Hall switch.

Power On/Off and Pairing

The X15 earbuds feature an intelligent Hall switch for convenient automatic power management and connection.

  • Power On: Simply open the lid of the charging case. The earbuds will automatically power on.
  • First-time Pairing:
    1. Open the charging case lid. The earbuds will power on and enter pairing mode, indicated by alternating red and blue flashing lights.
    2. On your smartphone or Bluetooth-enabled device, go to the Bluetooth settings and ensure Bluetooth is turned on.
    3. Search for new devices. You should see "X15" (or a similar name) appear in the list.
    4. Select "X15" to connect. Once successfully paired, the flashing lights on the earbuds will stop.
  • Auto Connection: After the initial successful pairing, the earbuds will automatically connect to your last paired device when you open the charging case lid.
  • Power Off: Place both earbuds back into the charging case and close the lid. They will automatically power off and begin charging.
Intelligent Hall Switch feature for X15 earbuds
The Intelligent Hall Switch allows the earbuds to automatically power on and connect when the charging case lid is opened.

Operating Instructions

Touch Controls (Fingerprint Touch)

The X15 earbuds are equipped with touch-sensitive areas for convenient control of various functions. While specific gestures are not fully detailed in the provided information, common touch controls typically include:

  • Play/Pause: Single tap on either earbud.
  • Next Track: Double tap on the right earbud.
  • Previous Track: Double tap on the left earbud.
  • Answer/End Call: Single tap on either earbud during an incoming call.
  • Reject Call: Long press on either earbud during an incoming call.
  • Activate Voice Assistant (Siri/Alexa): Triple tap on either earbud.
  • Volume Control: (If supported) Long press on left for volume down, right for volume up.
  • Toggle Gaming Mode: A specific tap sequence (e.g., triple tap or long press) may be used to switch between normal and low-latency gaming modes.

For precise touch control mappings, please refer to the comprehensive user manual if available.

Gaming Mode (65ms Low Latency)

The X15 earbuds are optimized for gaming with a dedicated low-latency mode of 65ms, ensuring minimal delay between in-game actions and audio feedback. This feature provides a smooth and synchronized audiovisual experience.

Wireless Gaming Smooth Experience with 65ms latency
The earbuds provide a smooth wireless gaming experience with 65ms low latency.

Furthermore, the earbuds offer accurate sound-source positioning, allowing you to clearly distinguish and locate in-game sounds such as footsteps and gunshots, giving you a competitive edge.

Accurate sound-source positioning in gaming
The earbuds enable accurate sound-source positioning, helping gamers identify the direction of in-game sounds like footsteps (NW 45°) and gunshots (NE 32°).

Music Mode (SAN Decoding)

For music enthusiasts, the X15 earbuds utilize SAN decoding to deliver high-resolution audio. This results in a rich, spacious, clear, and powerful sound, akin to a live concert experience.

Music mode with SAN decoding for high-resolution audio
The earbuds feature SAN decoding to deliver high-resolution audio, providing a clear and powerful sound in music mode.

Hi-Fi Phone Calls

The integrated audio circuit of the X15 earbuds is designed for exceptional call quality. It incorporates IC-driven noise-cancellation, RF switching, and EM suppression technologies to minimize background noise and enhance voice clarity, making your phone calls crisp and clear.

Hi-Fi phone calls with noise reduction
This image illustrates the improvement in call quality with noise reduction, showcasing clearer audio for Hi-Fi phone calls.

Maintenance and Care

  • Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Avoid using abrasive materials, solvents, or harsh chemicals, as these can damage the product.
  • Water Resistance: The earbuds are waterproof, offering protection against sweat and light splashes. However, they are not designed for swimming or prolonged submersion. Ensure the earbuds are completely dry before placing them back into the charging case to prevent damage to the charging contacts.
  • Storage: When not in use, always store the earbuds in their charging case. This protects them from dust and physical damage and keeps them charged. Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
  • Battery Care: To maximize the lifespan of the built-in batteries, avoid fully discharging the earbuds and charging case frequently. Charge them regularly, even if they are not completely depleted.

Troubleshooting

Earbuds not pairing or connecting:
  • Ensure both earbuds and the charging case have sufficient charge.
  • Verify that Bluetooth is enabled on your device.
  • Place the earbuds back into the charging case, close the lid, wait a few seconds, then open it again to re-activate pairing mode (red and blue lights flashing).
  • On your device, forget or delete "X15" from your Bluetooth device list and attempt the pairing process again.
  • Ensure there are no other active Bluetooth devices nearby that might be interfering with the connection.
Only one earbud working:
  • Check if both earbuds are charged.
  • Place both earbuds back into the charging case, close the lid, and then take them out simultaneously to ensure they connect to each other.
  • If the issue persists, try resetting the earbuds (refer to the full user manual for specific reset instructions if available).
Low volume or poor sound quality:
  • Adjust the volume level on both your connected device and the earbuds.
  • Ensure the speaker grilles on the earbuds are clean and free from earwax or debris.
  • Try different ear tip sizes to achieve a better seal in your ear, which can significantly improve sound quality and bass response.
  • Make sure your device is within the effective Bluetooth range (typically 10 meters/33 feet) and there are no major obstructions.
Charging issues:
  • Verify that the charging cable is securely connected to both the charging case and the power source.
  • Inspect the charging contacts on both the earbuds and inside the charging case for any dirt or obstruction. Clean gently if necessary.
  • Try using a different charging cable or power adapter to rule out a faulty accessory.
  • Ensure the charging case itself has sufficient power to charge the earbuds.

Warranty and Support

Your ZONGJI X15 TWS Bluetooth Earphones come with standard consumer guarantees. For detailed warranty information, please refer to the documentation provided at the time of purchase or contact the seller directly.

  • Free Returns: Enjoy free returns within 90 days of your purchase.
  • Fast Delivery Guarantee: If your delivery is delayed, you may be eligible for a $1.00 coupon code. Refunds are also available if the package is lost, items are damaged upon arrival, or if delivery is not completed within 60 days.
  • Customer Service: For any further assistance, technical support, or to initiate a warranty claim, please contact Stone's Store, the seller, through the platform where you made your purchase.

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