1. Introduction
The Monster XKT25 Wireless Bluetooth 5.4 Headphones are True Wireless Stereo (TWS) earbuds designed to deliver high-fidelity audio with advanced features. These earbuds are engineered for a superior listening experience, whether for music, gaming, or calls, featuring a sensitive microphone and active noise cancellation. With a focus on comfort and durability, the XKT25 is suitable for various activities, including sports and office use.
Image: Monster XKT25 Wireless Bluetooth 5.4 Headphones in blue.
2. Package Contents
Please check the package carefully to ensure all items are present:
- Monster XKT25 Wireless Bluetooth Headphones (Left and Right Earbuds)
- Charging Case
- USB Type-C Adapter (Charging Cable)
- User Manual
3. Specifications
The following table outlines the key technical specifications for the Monster XKT25 headphones:
Image: Detailed Headphone Parameters.
| Feature | Specification |
|---|---|
| Product Model | Monster Airmars XKT25 |
| Bluetooth Version | 5.4 |
| Speaker Unit (Driver Diameter) | 13mm |
| Maximum Wireless Range | ≥10 meters |
| Charging Port | Type-C |
| Sensitivity | 115dB ±3dB |
| Frequency Response Range | 20 - 20000Hz |
| Max Output Power | 10mW (5mW per earbud) |
| Music Playing Time | Approximately 4 hours |
| Channel System | Stereo |
| Earbud Battery Capacity | 30mAh |
| Charging Case Battery Capacity | 300mAh |
| Charging Time | Approximately 1.5 hours |
| Material | ABS |
| Waterproof | Yes |
| Active Noise-Cancellation | Yes |
| Microphone | Yes |
| Codecs | AAC |
| Style | In-ear |
| Certification | CE |
4. Setup Guide
4.1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and charging case. Connect the provided USB Type-C cable to the charging port on the case and a suitable power source. The charging case has four battery indicator lights to show the charge level (0-25%, 25-50%, 50-75%, 100%).
- Charging Time: Approximately 1.5 hours for a full charge.
- Music Time: Up to 4 hours on a single charge.
- Total Standby Time: Up to 28 hours with the charging case.
Image: Charging and Music Playback Times.
Image: Charging case with battery indicator lights.
4.2. Pairing with a Device
The Monster XKT25 earbuds feature automatic pairing for convenience.
- Ensure the earbuds are charged.
- Open the charging case. The earbuds will automatically power on and enter pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select 'Monster Airmars XKT25' from the list of devices to connect.
- Once connected, you will hear an audio prompt, and the earbuds will be ready for use.
Image: Earbuds automatically connect when taken out of the case.
4.3. Device Compatibility
The Monster XKT25 headphones are designed for broad compatibility, supporting various operating systems and devices.
- Operating Systems: iOS, Android, Windows
- Devices: Mobile phones, tablets (Pads), laptops, and other Bluetooth-enabled devices.
Image: Smart compatibility across Android, iOS, and Windows platforms.
5. Operating Instructions
5.1. Basic Functions (Touch Controls)
The Monster XKT25 earbuds utilize touch-sensitive controls for various functions. While there are no physical control buttons, functions like volume adjustment and track control are managed via touch gestures on the earbuds.
- Power On/Off: Earbuds power on automatically when removed from the case and power off when placed back in the case.
- Play/Pause: Tap either earbud once.
- Next Track: Double-tap the right earbud.
- Previous Track: Double-tap the left earbud.
- Volume Up: Triple-tap the right earbud.
- Volume Down: Triple-tap the left earbud.
- Answer/End Call: Tap either earbud once during an incoming call.
- Reject Call: Press and hold either earbud for 2 seconds during an incoming call.
- Activate Voice Assistant (Siri/Google Assistant): Press and hold either earbud for 3 seconds.
5.2. Audio Features
- Bass HD Audio Decoding: Experience rich, deep bass and high-definition audio for an immersive sound experience.
- Hifi Stereo Sound: Enjoy clear, balanced, and high-quality stereo sound reproduction.
- Active Noise-Cancellation: Reduces ambient noise for clearer audio and calls.
- Sensitive Microphone: Effectively shields external sounds and accurately collects your voice for high-definition calls.
- Audio and Video Synchronization: Fast and stable transmission with low latency ensures synchronized audio and video, ideal for gaming and media consumption.
Image: Bass HD Audio Decoding feature.
Image: Sensitive microphone for HD calls.
Image: Audio and video synchronization for low latency.
5.3. Wearing the Earbuds
The XKT25 earbuds feature an exquisite semi-in-ear ergonomic design for comfortable and lightweight wear.
- Gently insert each earbud into your ear canal.
- Adjust the earbud until it feels secure and comfortable. The semi-in-ear design ensures a snug fit without burden.
Image: Lightweight and ergonomic semi-in-ear design.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your Monster XKT25 headphones.
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Water Resistance: The earbuds are waterproof. However, avoid prolonged exposure to water or submerging them. Dry them thoroughly if they get wet.
- Storage: When not in use, store the earbuds in their charging case to protect them from dust and damage. Store in a cool, dry place away from extreme temperatures.
- Charging: Use only the provided Type-C charging cable and a certified power adapter to prevent damage to the battery.
7. Troubleshooting
If you encounter issues with your Monster XKT25 headphones, try the following solutions:
- No Sound/Connection Issues:
- Ensure both earbuds are charged.
- Make sure Bluetooth is enabled on your device.
- Try unpairing and re-pairing the earbuds with your device.
- Ensure the earbuds are within the effective wireless range (≥10 meters) of your device.
- Only One Earbud Working:
- Place both earbuds back into the charging case, close the lid, wait a few seconds, then take them out again. This often re-syncs them.
- Check if both earbuds have sufficient battery.
- Charging Problems:
- Verify the charging cable and adapter are working correctly.
- Ensure the charging contacts on the earbuds and inside the case are clean and free of debris.
- Touch Controls Unresponsive:
- Ensure your fingers are clean and dry when using touch controls.
- Restart the earbuds by placing them in the case and taking them out again.
8. User Tips
- Waterproof Feature: The XKT25 earbuds are waterproof, making them suitable for workouts and light rain. However, they are not designed for swimming or prolonged submersion. Always dry them thoroughly after exposure to moisture.
- Touch Control Clarity: Remember that the XKT25 uses touch controls for functions like volume and track changes, not physical buttons. Familiarize yourself with the tap and hold gestures for seamless operation.
- Optimal Fit: For the best sound quality and noise cancellation, ensure the semi-in-ear earbuds are seated comfortably and securely in your ears. A good seal enhances bass response and passive noise isolation.
9. Warranty and Support
For detailed warranty information and customer support, please refer to the official Monster product documentation or contact your retailer. A comprehensive user manual in multiple languages (English, French, German, Russian, Japanese, Korean, etc.) is available for download. You can access the PDF version of the user manual for more in-depth instructions and diagrams:
Image: Example pages from the multi-language user manual.
The product has undergone strict quality control and holds relevant certifications, including CE.
Image: Quality Inspection Report and Authorization Certificate.
10. Safety Information
- Do not disassemble, repair, or modify the product. This may cause fire, electric shock, or complete damage to the product.
- Keep the product away from extreme temperatures, direct sunlight, and high humidity.
- Avoid dropping or subjecting the product to strong impacts.
- Keep out of reach of children and pets.
- Do not use the product at high volume for extended periods to prevent hearing damage.
- Be aware of your surroundings when using the earbuds, especially in traffic or other potentially dangerous situations.
