1. Introducció
Welcome to the Monster Open Ear AC228 Wireless Headphones user manual. This guide provides detailed instructions on how to set up, operate, maintain, and troubleshoot your new headphones. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.
Figure 1: Monster Open Ear AC228 Wireless Headphones and Charging Case.
2. Què hi ha a la caixa
Your Monster Open Ear AC228 Wireless Headphones package includes the following items:
- 1 x Monster Open Ear Earbuds
- 1 cable de càrrega (USB-A a USB-C)
- 1 x Manual d'usuari
3. Producte acabatview i Característiques clau
The Monster Open Ear AC228 headphones are designed for adaptive comfort and immersive audio, allowing you to stay aware of your surroundings while enjoying high-quality sound. Key features include:
- So pur de monstre: Equipped with 13mm dynamic drivers for rich, balanced audio and clarity. Utilizes directional audio technology to minimize sound leakage.
- Disseny d'orella oberta: Allows users to remain aware of their surroundings, enhancing safety during outdoor activities.
- Stable and Comfortable Fit: Crafted with skin-friendly liquid silicone and flexible nickel-titanium memory alloy for a secure, pressure-free fit.
- Reducció de soroll ENC: Features ENC Adaptive Noise Reduction Algorithm and 2 microphones for clear call quality, even in noisy environments.
- Bluetooth 6.0 avançat: Provides faster pairing, improved range, enhanced stability, and lossless transmission.
- Resistent a l'aigua IPX5: Designed to withstand heavy sweat and rain, making them suitable for sports and fitness.
- Durada de la bateria durant tot el dia: Up to 8 hours on a single charge, extended to 24 hours with the compact charging case.

Figure 2: The open-ear clip-on design ensures a comfortable, flexible, and snug fit for extended wear.

Figure 3: Internal structure highlighting the 13mm dynamic drivers responsible for Pure Monster Sound.

Figure 4: Advanced directional sound technology transmits audio precisely into the ear canal, minimizing leakage.
4. Configuració i emparellament
Follow these steps to set up and pair your Monster Open Ear AC228 headphones with your device:
- Carregueu els auriculars: Before first use, ensure the headphones and charging case are fully charged. Connect the provided USB-C cable to the charging port on the case and a power source. The indicator light on the case will show charging status.
- Encès: Obre l'estoig de càrrega. Els auriculars s'encendran automàticament i entraran en mode d'emparellament.
- Activa el Bluetooth: Al telèfon intel·ligent, la tauleta o un altre dispositiu amb Bluetooth, aneu a la configuració de Bluetooth i activeu el Bluetooth.
- Seleccioneu el dispositiu: In the list of available Bluetooth devices, select "Monster AC228" (or similar name).
- Confirmeu l'aparellament: Once selected, the headphones will connect, and you will hear an audio prompt confirming successful pairing. The indicator light on the headphones may change to a steady blue or turn off.
Els auriculars es tornaran a connectar automàticament a l'últim dispositiu emparellat quan es treguin de l'estoig, si el Bluetooth està habilitat al dispositiu.
5. Instruccions d'ús
For optimal sound quality and comfort, ensure the headphones are worn correctly:
- Identifica els auriculars esquerre (E) i dret (R).
- Gently clip the earbud onto your ear, ensuring the sound output is directed towards your ear canal.
- Adjust the flexible ear hook to fit snugly and securely around your ear. The lightweight and ergonomic design ensures long-lasting comfort.
Figure 5: Proper placement of the Monster Open Ear headphones for best wearing and sound experience.
6. Toqueu Controls
The Monster Open Ear AC228 headphones feature intuitive touch controls on each earbud. Refer to the diagram below for specific functions:
Figure 6: Touch control functions for Left (L) and Right (R) earbuds.
| Acció | Function (R/L Earbud) | Function (L Earbud Only) | Function (R Earbud Only) |
|---|---|---|---|
| Feu clic x 2 | Answer/Hang up Call, Play/Pause | ||
| Press x 2s | Reject Call, Voice Assistant | ||
| Feu clic x 3 | Pista anterior | Pista següent | |
| Feu clic x 1 | Baixa el volum | Puja el volum |
7. Càrrega
To charge your Monster Open Ear AC228 headphones and their charging case:
- Place the earbuds back into the charging case. Ensure they are properly seated; magnetic contacts will hold them in place.
- Connect the provided USB-A to USB-C charging cable to the USB-C port on the charging case.
- Plug the USB-A end of the cable into a compatible USB power adapter (not included) or a computer's USB port.
- The indicator light on the charging case will illuminate to show charging status. A full charge provides up to 24 hours of total playtime (8 hours from earbuds + 16 hours from case recharges).
Figure 7: Battery life breakdown: 8 hours on a single charge, extended to 24 hours with the charging case.
8. Cura i Manteniment
To ensure the longevity and optimal performance of your headphones, follow these care guidelines:
- Neteja: Netegeu regularment els auriculars i l'estoig de càrrega amb un drap suau, sec i sense borrissol. No utilitzeu productes químics agressius ni materials abrasius.
- Resistència a l'aigua: The headphones are IPX5 water resistant, meaning they can withstand splashes and sweat. Do not submerge them in water or expose them to strong jets of water. Ensure they are dry before placing them back in the charging case.
- Emmagatzematge: Quan no els utilitzeu, guardeu els auriculars a la funda de càrrega per protegir-los de la pols i els danys. Guardeu-los en un lloc fresc i sec, allunyat de temperatures extremes.
- Eviteu les gotes: While durable, avoid dropping the headphones or case, as this can cause internal damage.
Figure 8: The IPX5 rating ensures the headphones are water and sweat resistant for active use.
9. Solució De Problemes
Si teniu algun problema amb els auriculars, proveu les solucions següents:
| Problema | Solució |
|---|---|
| Els auriculars no s'emparellaven | Ensure Bluetooth is enabled on your device. Place earbuds back in case, close, then open to re-enter pairing mode. Forget "Monster AC228" from your device's Bluetooth list and try pairing again. |
| Sense so ni volum baix | Check volume levels on both your device and the headphones. Ensure headphones are fully charged and properly connected. Try playing different audio sources. |
| Connexió intermitent | Ensure you are within the Bluetooth range (typically 10 meters/33 feet) without significant obstacles. Avoid strong electromagnetic interference. Recharge headphones and device. |
| Els auriculars no es carreguen | Ensure the charging cable is securely connected to both the case and the power source. Verify the charging contacts on the earbuds and inside the case are clean and free of debris. |
| El micròfon no funciona | Ensure the headphones are selected as the audio input device on your connected device. Check for any obstructions on the microphone ports. |
10. Especificacions
| Característica | Detall |
|---|---|
| Marca | Monstre |
| Model | E108bk |
| Tecnologia de connectivitat | Sense fil (Bluetooth) |
| Versió Bluetooth | 6.0 |
| Tipus de controlador d'àudio | Controlador dinàmic de 13 mm |
| Control de soroll | Cancel·lació de soroll ambiental (ENC) |
| Durada de la bateria (auriculars) | Aproximadament 8 hores (una sola càrrega) |
| Temps de reproducció total (amb estoig) | Fins a 24 hores |
| Nivell de resistència a l'aigua | IPX5 |
| Mètode de control | Toca |
| Forma de l'auricular | Open ear earbuds |
| Material | Plastic, Liquid Silicone |
| Pes de l'article | 6 unces |
| Interval de freqüència | 20 Hz a 20,000 Hz |
11. Garantia i Suport
Monster provides a limited warranty for its products. For detailed warranty information, product registration, or technical support, please visit the official Monster weblloc web o poseu-vos en contacte amb el seu servei d'atenció al client. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.
For further assistance, you may also refer to the product page on Amazon.com for frequently asked questions or community support.





