Introducció
Thank you for choosing the Monster MH22181 HIFI Sound Headphones. These wireless open-ear earphones are designed to provide a high-quality audio experience with advanced features such as Bluetooth 5.4 connectivity, HIFI sound, low latency, and HD call capabilities. This manual will guide you through the setup, operation, and maintenance of your new headphones to ensure optimal performance and longevity.
Configuració
Què hi ha a la caixa
Carefully unpack your Monster MH22181 headphones and ensure all items are present:
- Earphones (Left and Right) x 2
- Estoig de càrrega x 1
- Caixa d'embalatge x 1
- Cable de càrrega USB-C x 1
- Manual d'instruccions x 1
- Targeta de garantia x 1
- Certificate of Conformity x 1

Figure 1: Product List - All items included in the package.
Carregant els auriculars
Abans del primer ús, carregueu completament els auriculars i l'estoig de càrrega.
- Col·loqueu els dos auriculars a la caixa de càrrega.
- Connect the provided USB-C charging cable to the charging port on the case and to a suitable USB power source.
- Els indicadors lluminosos de la caixa de càrrega mostraran l'estat de la càrrega. Un cop carregada completament, els llums indicaran que s'ha completat o s'apagaran.
A single earphone provides approximately 5 hours of music playback. The charging case can provide up to 3 full charges, extending the total playback time to about 20 hours.

Figure 2: Ultra-long battery life illustration.
Vinculació amb un dispositiu
The Monster MH22181 headphones utilize Bluetooth 5.4 technology for a fast, stable, and low-latency connection.
- Assegureu-vos que els auriculars estiguin carregats i col·locats a l'estoig de càrrega.
- Obriu l'estoig de càrrega. Els auriculars entraran automàticament en mode d'emparellament (indicat per llums intermitents, si n'hi ha).
- Al dispositiu (telèfon intel·ligent, tauleta, ordinador), aneu a la configuració de Bluetooth i activeu el Bluetooth.
- Cerca available devices and select "Monster MH22181" from the list.
- Un cop connectat, sentireu un to de confirmació i els indicadors lluminosos dels auriculars canviaran.

Figure 3: Bluetooth 5.4 lightning fast connection technology.
Instruccions de funcionament
Portant els auriculars
The MH22181 features an open-ear design for comfortable, light, and transparent listening, eliminating ear swelling from long-term wear. The skin-friendly silicone and one-piece molding ensure a comfortable fit.

Figure 4: Open listening design for comfort.

Figure 5: Comfortable wearing experience.
Multi-Function Button (MFB) Controls
The earphones feature sensitive and convenient fingerprint touch controls on the Multi-Function Button (MFB) for various functions:
| Funció | Acció |
|---|---|
| Pausa/Reproduir música | Double-click MFB (either left or right earphone) |
| Volum - | Feu clic a l'esquerra MFB |
| Volum + | Feu clic a MFB dret |
| Cançó anterior | Toca l'auricular esquerre 3 vegades |
| Següent Cançó | Toca l'auricular dret 3 vegades |
| Voice Control (Activate Assistant) | Press and hold MFB for 2 seconds (either left or right earphone) |
| Rebutja la trucada | Press and hold MFB for 2 seconds (either left or right earphone) |
| Respondre/Finalitzar la trucada | Tap twice (either left or right earphone) |

Figure 6: Headphone Multi-Function Button (MFB) controls.
Característiques de so
Experience Pure Monster Perfect Sound Quality with a super large dynamic drive unit and modified PI composite beryllium diaphragm. The headphones offer 360° panoramic sound, where the cavity design reduces sound resonance for a more stable audio experience. Directional sound transmission ensures full-band sound quality that is three-dimensional and effectively suppresses 60-degree elevation.

Figure 7: Pure Monster Perfect Sound Quality components.

Figure 8: 360° panoramic sound experience.

Figure 9: Directional sound transmission technology.
HD Voice Call
For clear communication, the MH22181 adopts a MEMS intelligent AI call noise reduction algorithm and a hidden pickup hole design, effectively reducing environmental noise during calls.

Figure 10: HD voice call with AI noise reduction.
Manteniment
Neteja
- Regularly wipe the earphones and charging case with a soft, dry, lint-free cloth.
- No utilitzeu netejadors abrasius, alcohol ni dissolvents químics.
- Ensure charging contacts on both earphones and the case are clean and free of debris to maintain proper charging.
Resistència a l'aigua
The Monster MH22181 headphones are rated IPX5 waterproof. This means they are professionally waterproof and have a high-sealed body, making them effectively resistant to sweat and rain. They are suitable for workouts and outdoor activities but should not be submerged in water.

Figure 11: IPX5 professional waterproof rating.
Emmagatzematge
Quan no els utilitzeu, guardeu els auriculars a la seva funda de càrrega per protegir-los de la pols i els danys, i per mantenir-los carregats.
Resolució de problemes
If you encounter any issues with your Monster MH22181 headphones, please refer to the following common solutions:
- Sense so: Ensure the earphones are properly paired and connected to your device. Check the volume levels on both the earphones and your device.
- No es pot emparellar: Make sure Bluetooth is enabled on your device and the earphones are in pairing mode (open the charging case). Try turning Bluetooth off and on again on your device, or restart both devices.
- Problemes de càrrega: Verify that the USB-C cable is securely connected to both the charging case and the power source. Clean the charging contacts on the earphones and inside the case.
- Connexió intermitent: Ensure you are within the maximum wireless range (<10m) of your device. Avoid obstacles that may interfere with the Bluetooth signal.
- Controls tàctils que no responen: Ensure your fingers are clean and dry. Try restarting the earphones by placing them back in the case and then taking them out again.
If the problem persists, consult the official Monster support resources or the warranty card for further assistance.
Especificacions
| Característica | Especificació |
|---|---|
| Nom de marca | MONSTRE |
| Model | MH22181 |
| Estil | Ear Hook, Open-ear style |
| Material | Plàstic |
| Comunicació | Sense fil (Bluetooth) |
| Versió Bluetooth | 5.4 |
| abast sense fils | <10 m |
| Classificació impermeable | IPX5 |
| Amb micròfon | Sí |
| Cancel·lació activa de soroll | No |
| Noise Reduction Type | ENC environmental noise reduction (for calls) |
| Botó de control | Sí |
| Control de volum | Sí |
| Principi de vocalisme | Dinàmic |
| Interval de resposta de freqüència | 20 - 20000Hz |
| Diàmetre del conductor | 10 mm |
| Nombre de conductors | 10 |
| Durada de la bateria d'un sol auricular | Unes 5 hores |
| Caixa de càrrega Capacitat de la bateria | 300 mAh |
| Charging Times (from case) | 3 vegades |
| Temps total de reproducció (amb estoig) | Fins a 20 hores |
| Port de càrrega | TIPUS-C |
| Weight per ear | Uns 5.5 g |
Consells per a l'usuari
- Ajust òptim: For the best sound experience and comfort, ensure the ear hooks are securely placed over your ears and the earbuds sit comfortably in your outer ear.
- Gestió de la bateria: To maximize battery life, always place the earphones back into the charging case when not in use. This keeps them protected and charged.
- Consciència ambiental: As these are open-ear headphones, they allow you to hear your surroundings. This is great for outdoor safety but be mindful of your environment when listening at higher volumes.
- Neteja regular: Keep the charging contacts on both the earphones and the case clean to prevent charging interruptions.
Garantia i Suport
Your Monster MH22181 HIFI Sound Headphones come with a warranty. Please refer to the included Warranty Card for detailed information regarding warranty terms, conditions, and duration. For technical support or service inquiries, please contact the seller or refer to the official Monster support channels as indicated on your warranty documentation.





