Introduction
Thank you for choosing the Monster XKO01 Wireless Bluetooth 5.3 Earphones. These earphones are designed to provide a stable and comfortable audio experience, whether for music, gaming, or sports. Featuring advanced Bluetooth 5.3 technology, HiFi stereo sound, and a durable ear-hook design, the XKO01 offers superior performance and convenience. This manual will guide you through the setup, operation, and maintenance of your new earphones.
Package Contents
- Monster XKO01 Wireless Bluetooth 5.3 Earphones
- Charging Case
- User Manual
- Type-C Charging Cable (implied by Type-C charging interface)
Product Overview
The Monster XKO01 earphones feature an ear-hook design for secure wear, making them ideal for active use. The charging case provides extended battery life and convenient storage.


Setup
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 charging case to a power source using the provided Type-C charging cable.
- The charging indicators on the case will show the charging status.
- Earphones typically charge in approximately 1.5 hours. The total battery life with the charging case is up to 28 hours.

2. Wearing the Earphones
The Monster XKO01 features a comfortable ear-hook design for stable wear, especially during physical activities.
- Identify the left (L) and right (R) earphones.
- Gently hook the earphone over your ear, ensuring the earbud sits comfortably in your ear canal.
- Adjust the ear-hook for a snug and secure fit.


3. Bluetooth Pairing
- Open the charging case. The earphones will automatically power on and enter pairing mode (indicated by a flashing LED light on the earphones).
- On your device (smartphone, tablet, computer), enable Bluetooth.
- Search for available Bluetooth devices and select "Monster XKO01" from the list.
- Once connected, the LED indicator on the earphones will stop flashing, and you will hear a confirmation tone.
- The earphones are compatible with mobile phones, notebooks, computers, and tablets.


Operating Instructions
Power On/Off
- Power On: Open the charging case, and the earphones will automatically power on. Alternatively, press and hold the touch control area on both earphones for a few seconds.
- Power Off: Place the earphones back into the charging case and close the lid. Alternatively, disconnect them from Bluetooth and they will power off automatically after a few minutes, or press and hold the touch control area for a few seconds.
Music Playback
- Play/Pause: Tap the touch control area on either earphone once.
- Next Track: Double-tap the right earphone.
- Previous Track: Double-tap the left earphone.
- Volume Control: The earphones support volume control. (Specific gestures not detailed, refer to quick start guide if included).
Call Management
- Answer/End Call: Tap the touch control area on either earphone once.
- Reject Call: Press and hold the touch control area on either earphone for 2 seconds.
- The earphones feature a silicon wheat HD pickup for clearer and smoother voice during calls.

Voice Assistant
- Activate Voice Assistant (Siri Support): Triple-tap the touch control area on either earphone.
Music/Game Dual Mode
The earphones support a dual mode for optimized audio experience.
- Switch Mode: (Specific gesture not detailed, refer to quick start guide if included).
- In game mode, the earphones provide low latency audio for an immersive gaming experience.

Single and Double Ear Use
You can use either earphone independently or both together.
- To use a single earphone, simply take one out of the case and connect it to your device. The other earphone can remain in the case or be used later.
- To switch between single and double ear use, simply take the other earphone out of the case, and it will automatically connect.

Maintenance
Cleaning
- Regularly clean the earphones and charging case with a soft, dry, lint-free cloth.
- Avoid using harsh chemicals or abrasive materials.
- Ensure charging contacts are clean and dry.
Water Resistance
The Monster XKO01 earphones are waterproof. However, they are not designed for swimming or prolonged submersion. Avoid exposing them to hot water, steam, or extreme conditions.
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 away from extreme temperatures.
Troubleshooting
Earphones not pairing or connecting
- Ensure both earphones are charged.
- Make sure Bluetooth is enabled on your device.
- Turn off Bluetooth on your device, then turn it back on.
- Forget "Monster XKO01" from your device's Bluetooth list and try pairing again.
- Place earphones back in the case, close the lid, wait a few seconds, then open to reset.
No sound or low volume
- Check the volume levels on both your device and the earphones.
- Ensure the earphones are properly connected to your device.
- Try playing different audio sources.
- Clean any debris from the earphone speakers.
Charging issues
- Ensure the charging cable is securely connected to both the case and the power source.
- Try a different charging cable or power adapter.
- Clean the charging contacts on both the earphones and the case.
Specifications

| Feature | Specification |
|---|---|
| Product Type | Acoustic Motion Bluetooth Earphones |
| Product Model | XKO01 |
| Bluetooth Version | 5.3 |
| Transmission Distance | 10 meters |
| Sensitivity | 106dB +3dB |
| Earphone Battery Capacity | 50mAh |
| Music Playback Time | ~7 hours (at 60% volume) |
| Total Battery Life (with case) | Up to 28 hours |
| Earphone Charging Time | ~1.5 hours |
| Charging Interface | Type-C |
| Driver Diameter (Horn Unit) | 16.2mm |
| Material | ABS, Silica Gel |
| Max Output | 10mW |
| Number of Drivers | 2 |
| Impedance Range | Up to 32 Ω |
| Frequency Response Range | 20 - 20000Hz |
| Features | Waterproof, With microphone, Apple Siri Support, Active Noise-Cancellation, Volume Control |
| Audio Codecs | AAC |
| Communication | Wireless (Bluetooth) |
| Style | TWS In-ear Headphones (Ear Hook) |
| Certification | CE, RoHS |
| Origin | Mainland China |
User Tips
- For optimal sound quality and comfort, ensure the earphones are properly seated in your ears.
- Keep the charging case charged to ensure your earphones are always ready for use.
- When switching between music and game modes, listen for the audio cue to confirm the change.
- If experiencing connection issues, try restarting both the earphones and your connected device.
Warranty and Support
The Monster XKO01 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 department. Contact information can typically be found on the product packaging or the official Monster website.





