Introduction
Welcome to the Monster XKT13 Wireless Bluetooth 5.3 Headphones user manual. These TWS (True Wireless Stereo) mini earbuds feature a unique lipstick-inspired rotating design, offering both style and high-fidelity audio. With Bluetooth 5.3 technology, active noise cancellation, and a comfortable fit, the XKT13 provides an immersive listening experience for music, calls, and gaming. This manual will guide you through the setup, operation, and maintenance of your new headphones.

Package Contents
Please check the box for the following items:
- Monster XKT13 Wireless Earbuds
- Charging Case
- Charging Cable (Type-C)
- User Manual (this document, and a PDF version is available here)
Specifications
The following table outlines the technical specifications of your Monster XKT13 headphones:
| Feature | Specification |
|---|---|
| Product Model | Monster Airmars XKT13 |
| Bluetooth Version | V5.3 |
| Driver Diameter (Horn Unit) | 13mm |
| Bluetooth Effective Range | ≥10m |
| Charging Port | Type-C |
| Overall Sensitivity | ~106dB±3dB |
| Frequency Response | 20Hz - 20KHz |
| Maximum Power | 5mW*2 |
| Music Playing Time | About 3 hours (earbuds) |
| Channel System | Stereo |
| Battery Capacity | 25mAh (headset) + 200mAh (charging case) |
| Charging Time | About 1.5 hours (charging case) |
| Material | ABS |
| Features | With microphone, Apple Siri Support, Active Noise-Cancellation, Waterproof, Volume Control |
| Codecs | AAC |
| Style | TWS in-ear headphones |
| Origin | Mainland China |
| Certification | CE |

Setup
1. Initial Charging
Before first use, fully charge the charging case and earbuds. Connect the provided Type-C charging cable to the charging port on the case and a power source. The charging time for the case is approximately 1.5 hours. The total battery life with the charging compartment is up to 32 hours.

2. Power On & Pairing
The Monster XKT13 earbuds feature an automatic connection system. Simply rotate the cover of the charging case to open it, and the earbuds will power on and automatically enter pairing mode. They will also automatically connect to the last paired device when opened, eliminating the need for re-pairing each time.
- First-time Pairing: Open the charging case. The earbuds will enter pairing mode. On your device (smartphone, tablet, etc.), go to Bluetooth settings and select "Monster Airmars XKT13" from the list of available devices.
- Automatic Reconnection: Once paired, the earbuds will automatically connect to your device when you open the charging case.


3. Wearing the Earbuds
The XKT13 earbuds are designed for comfortable, non-inductive wear. Insert the earbuds gently into your ears. Adjust them for a secure and comfortable fit. The ergonomic design ensures they can be worn for extended periods without discomfort.

Operating Instructions
The Monster XKT13 earbuds feature touch controls for various functions. Specific touch gestures are typically detailed in the full user manual PDF, but common functions include:
Music Playback
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Volume Control: The earbuds support volume control. Refer to the PDF manual for specific gestures.
Call Management
- Answer/End Call: Single tap on either earbud.
- Reject Call: Press and hold either earbud for 2 seconds.
- Intelligent HD Call: The earbuds are equipped for clear high-definition calls.
Voice Assistant
Activate your device's voice assistant (e.g., Apple Siri Support) with a specific touch gesture. Refer to the PDF manual for details.
Game Mode
To enhance your gaming experience with lower latency and greater immersion, activate Game Mode:
- Activate Game Mode: Press and hold either earbud for 2 seconds.
Maintenance
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Storage: When not in use, store the earbuds in their charging case to protect them and keep them charged.
- Battery Care: To prolong battery life, avoid fully discharging the earbuds and charging case frequently. Charge them regularly, even if not used for a long time.
- Water Resistance: The earbuds are waterproof. However, avoid prolonged exposure to water or submersion. Dry them thoroughly if they get wet.
Troubleshooting
If you encounter any issues with your Monster XKT13 headphones, please refer to the following common solutions:
- No Sound/Connection Issues:
- Ensure the earbuds are charged.
- Make sure Bluetooth is enabled on your device.
- Place the earbuds back in the case, close the lid, wait a few seconds, then open the lid to re-establish the connection.
- If the issue persists, try performing a factory reset (refer to the PDF manual for instructions).
- Poor Sound Quality:
- Ensure the earbuds are properly seated in your ears for an optimal seal.
- Check if the earbuds or your device's volume is too low.
- Clean any debris from the earbud speakers.
- Earbuds Not Charging:
- Ensure the charging cable is securely connected to both the case and the power source.
- Check if the charging contacts on the earbuds and inside the case are clean and free of obstruction.
- Microphone Not Working:
- Ensure the earbuds are connected to your device.
- Check your device's audio input settings to confirm the earbuds' microphone is selected.
User Tips
- The Monster XKT13 earbuds include a built-in microphone for calls and support touch controls for various functions, including activating game mode and managing media playback.
- For optimal gaming performance, remember to activate Game Mode by pressing and holding an earbud for 2 seconds to reduce latency.
Warranty and Support
Your Monster XKT13 headphones come with a standard manufacturer's warranty. Please retain your proof of purchase for any warranty claims. For detailed warranty information, technical support, or service inquiries, please contact the seller or refer to the official Monster product support channels.





