Introduction
Thank you for choosing the Monster XKT03 True Wireless Bluetooth 5.2 Earphones. These earphones are designed to provide a high-quality audio experience with features like noise reduction, HIFI stereo sound, and a long standby time. This manual will guide you through the setup, operation, and maintenance of your new earphones.
Safety Information
- Do not expose the earphones or charging case to extreme temperatures, humidity, or liquids.
- Avoid dropping, impacting, or disassembling the device.
- Keep out of reach of children and pets.
- Use only the provided or certified charging cables and adapters.
- Listening at high volumes for extended periods can cause hearing damage. Adjust volume to a safe level.
Package Contents
- Monster XKT03 True Wireless Earphones
- Charging Case
- USB Type-C Adapter (Charging Cable)
- Replaceable Pads Set (Ear tips)
- User Manual (This document)
Product Overview
The Monster XKT03 earphones feature a sleek design with advanced audio technology. Below are some visual references to help you identify components and understand key features.



Specifications
Below are the detailed technical specifications for your Monster XKT03 earphones:
| Feature | Specification |
|---|---|
| Model | XKT03 |
| Product Type | Real wireless Bluetooth headphones |
| Bluetooth Version | 5.2 |
| Loudspeaker Unit | 13mm |
| Wearing Style | In-ear (Earplugs type) |
| Bluetooth Transmission Distance | About 10m |
| Charging Parameters | 5V-300mA |
| Music Time | About 3 to 4 hours |
| Charging Interface | Type-C |
| Battery Capacity (Charging Bay) | 300mAh |
| Headphone Battery Capacity | 30mAh |
| Charging Time (Charging Compartment) | About 2 hours |
| Max Output | 10mW |
| Number Of Drivers | 2 |
| Impedance Range | up to 32 Ω |
| Frequency Response Range | 20 - 20000Hz |
| Codecs | AAC, SBC |
| Features | Waterproof, With microphone, Active Noise-Cancellation, Volume Control |
| Control Button | No (Smart Touch controls) |
| Support APP | No |
| Certification | CE |

Setup Instructions
1. Charging the Earphones and Case
Before first use, fully charge the earphones and the charging case.
- Place the earphones into the charging case.
- Connect the Type-C charging cable to the charging port on the case and a power source (e.g., USB wall adapter, computer USB port).
- The indicator light on the charging case will show charging status. A full charge for the charging compartment takes approximately 2 hours.
- The charging case has a 300mAh capacity, and each earphone has a 30mAh battery.

2. Pairing with a Bluetooth Device
The Monster XKT03 earphones utilize Bluetooth 5.2 for a stable and low-latency connection. They feature a dual host chip, allowing both earphones to connect synchronously and independently.
- Open the charging case and remove both earphones. They will automatically enter pairing mode.
- On your device (smartphone, tablet, laptop), go to Bluetooth settings and ensure Bluetooth is enabled.
- Search for available devices and select "Monster XKT03" from the list.
- Once connected, you will hear a confirmation tone, and the indicator lights on the earphones will change.
- The earphones are compatible with Android, iOS, and Windows systems.


Operating Instructions
1. Power On/Off
- Power On: Remove earphones from the charging case. They will power on automatically.
- Power Off: Place earphones back into the charging case. They will power off and begin charging automatically.
2. Smart Touch Controls
The Monster XKT03 earphones feature smart touch controls for various functions. Specific touch gestures are not detailed in the provided information, but typical functions include:
- Play/Pause: Single tap on either earphone.
- Next Track: Double tap on the right earphone.
- Previous Track: Double tap on the left earphone.
- Answer/End Call: Single tap on either earphone.
- Reject Call: Press and hold either earphone.
- Activate Voice Assistant: Triple tap on either earphone.
- Volume Control: The earphones support volume control via touch, though specific gestures are not provided. Refer to your device's Bluetooth settings or the earphone's quick start guide for exact commands.
3. Game/Music Dual Mode
The earphones offer a dual mode for optimized performance in both gaming and music listening.
- Switch between Game mode (low latency) and Music mode (HIFI stereo) as needed. The method for switching modes is typically a specific touch gesture (e.g., press and hold for a few seconds).
- In Game mode, enjoy low-delay audio for a more immersive gaming experience.
- In Music mode, experience rich HIFI sound quality with AAC and SBC audio decoding.

4. Noise Reduction
The Monster XKT03 earphones feature AAC call noise reduction and active noise-cancellation technology.
- Built-in highly sensitive microphones and game-grade noise-cancelling technology ensure your voice is heard clearly during calls.
- Active Noise-Cancellation helps to filter out ambient noise for a more focused listening experience.

Maintenance
- Cleaning: Regularly clean the earphones and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Ear Tips: Remove and clean the ear tips periodically with water and mild soap, then dry thoroughly before reattaching.
- Storage: When not in use, store the earphones in their charging case to protect them and keep them charged. Store in a cool, dry place.
- Water Resistance: The earphones are waterproof, but this does not mean they are suitable for swimming or submersion. Avoid prolonged exposure to water. Dry them thoroughly if they get wet.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| Earphones not pairing | Ensure earphones are charged. Turn off and on your device's Bluetooth. Forget the device in Bluetooth settings and re-pair. |
| Only one earphone working | Place both earphones back in the case, close it, then open and remove them again. Ensure both are charged. |
| No sound | Check device volume and earphone volume. Ensure earphones are connected to the correct device. |
| Charging case not charging | Check the Type-C cable and power adapter. Ensure connections are secure. Try a different cable or power source. |
| Poor sound quality | Ensure earphones are clean. Try different ear tips for a better seal. Move closer to your Bluetooth device to avoid interference. |
User Tips
- For optimal sound and noise reduction, choose the ear tips that provide the best seal in your ear canal.
- Regularly clean the charging contacts on both the earphones and the case to ensure reliable charging.
- If experiencing connection issues, try resetting the earphones by placing them in the case, closing it for a few seconds, then reopening and re-pairing.
Warranty and Support
Your Monster XKT03 True Wireless Bluetooth 5.2 Earphones come with a standard manufacturer's warranty. Please retain your proof of purchase for any warranty claims.
For technical support, troubleshooting assistance, or warranty inquiries, please contact the retailer or manufacturer's customer service. Contact information can typically be found on the product packaging or the official Monster website.





