1. Produto rematadoview
The BEARTWO SX-991 is a lightweight, foldable Bluetooth neckband headset designed for convenience and high-fidelity audio. Featuring retractable earbuds and passive noise cancellation, it is suitable for sports, exercise, and daily use. This manual provides detailed instructions to help you get the most out of your headset.

Image 1.1: The BEARTWO SX-991 headset, showcasing its foldable design and retractable earbuds, accompanied by its protective carry case.
2. Características clave
- Son estéreo de alta fidelidade: Equipped with a high-sensitivity microphone and passive noise-canceling technology for clear calls and music.
- Duración prolongada da batería: Offers up to 16 hours of continuous music playback and 300 hours of standby time on a single charge.
- Bluetooth avanzado 4.1: Ensures a fast, stable, and low-power connection, compatible with most smartphones, iPhones, and Android devices.
- Ergonomic Neckband Design: Made from durable ABS+PC material, providing a comfortable and lightweight fit for prolonged wear.
- Foldable & Retractable: Features a foldable structure for easy portability and retractable earbuds for tangle-free storage.

Image 2.1: The headset's foldable design allows for compact storage, easily fitting into a pocket or the included carry case.

Image 2.2: Battery performance details, highlighting long music playback and standby times.

Image 2.3: Key technologies for enhanced sound quality and call management.
3. Guía de configuración
3.1 Carga dos auriculares
Before first use, fully charge the headset. The charging port is a Micro USB port located on the side of the neckband.
- Locate the Micro USB charging port on the headset (refer to Image 3.1).
- Gently open the rubber cover protecting the charging port.
- Connect the provided USB charging cable to the headset and a compatible USB power source (e.g., computer USB port, wall adapter).
- The indicator light will illuminate during charging. It typically takes approximately 3.5 hours for a full charge.
- Once fully charged, the indicator light may change color or turn off. Disconnect the charging cable and close the rubber cover to protect the port.
3.2 Acendido/Apagado
- Para acender: Slide the ON/OFF switch to the "ON" position. The indicator light will flash, indicating it's powered on.
- Para apagar: Slide the ON/OFF switch to the "OFF" position. The indicator light will turn off.
3.3 Emparejamento Bluetooth
Pair your headset with your device to enable wireless audio and calls.
- Asegúrese de que os auriculares están apagados.
- Press and hold the Multi-function button (often the call answer/hang-up button) until the indicator light flashes red and blue alternately, indicating pairing mode.
- On your smartphone or Bluetooth-enabled device, go to the Bluetooth settings and turn Bluetooth on.
- Busca available devices. The headset should appear as "BEARTWO SX-991" or a similar name.
- Select the headset from the list to connect. Once paired, the indicator light will typically flash blue slowly or remain solid blue.
- Se se lle solicita un contrasinal, introduza "0000".

Imaxe 3.1: Detallada view of the headset's control buttons and Micro USB charging port.
4. Instrucións de funcionamento
4.1 Reprodución de música
- Reproducir/Pausa: Prema o botón multifunción unha vez.
- Próxima pista: Press and hold the "Vol+" button.
- Pista anterior: Press and hold the "Vol-" button.
- Subir volume: Short press the "Vol+" button.
- Baixar volume: Short press the "Vol-" button.
4.2 Xestión de chamadas
- Responder/Finalizar chamada: Prema o botón multifunción unha vez.
- Rexeitar a chamada: Prema e manteña premido o botón multifunción durante aproximadamente 2 segundos.
- Volver a marcar o último número: Prema dúas veces o botón multifunción.
- Asistente de voz: Press the Multi-function button for 1 second to activate your device's voice assistant (e.g., Siri, Google Assistant).
4.3 Retractable Earbuds
- Para estender: Gently pull the earbuds out to the desired length.
- Para retraer: Press the retractable cable button located on the side of the neckband for the corresponding earbud (L for left, R for right). The cable will automatically retract.
5. Mantemento
- Limpeza: Usa un pano suave e seco para limpar os auriculares. Non empregues produtos de limpeza abrasivos nin disolventes.
- Almacenamento: When not in use, fold the headset and store it in the provided carry case to prevent damage and tangling.
- Evitar a humidade: The headset is not water-resistant. Avoid exposure to water, rain, or excessive humidity.
- Temperatura: Non expoñas os auriculares a temperaturas extremas (quentes ou frías).
6 Solución de problemas
| Problema | Causa posible | Solución |
|---|---|---|
| Os auriculares non se acende. | Batería baixa. | Cargue os auriculares completamente (aproximadamente 3.5 horas). |
| Non se pode emparellar co dispositivo. | O Bluetooth está desactivado no dispositivo; os auriculares non están en modo de emparellamento; están demasiado lonxe do dispositivo. | Ensure Bluetooth is enabled on your device. Put headset in pairing mode (flashing red/blue). Keep devices within 10 meters. |
| Sen son ou mala calidade de son. | Volume too low; not properly paired; interference. | Increase volume on both headset and device. Re-pair the headset. Move away from other wireless devices. |
| Earbuds do not retract. | Cable mechanism jammed or damaged. | Ensure no obstructions. Gently try to retract again. Avoid forcing the mechanism. |
7. Especificacións do produto
- Nome do modelo: SX-991
- Marca: BEARTWO
- Conectividade: Bluetooth 4.1
- Alcance Bluetooth: Ata 10 metros (33 pés)
- Duración da batería (reprodución de música): Ata 16 horas
- Duración da batería (tempo de conversación): Ata 18 horas
- Tempo de espera: Ata 300 horas
- Tempo de carga: Aproximadamente 3.5 horas
- Porto de carga: Micro USB
- Material: Acrylonitrile Butadiene Styrene (ABS) + Polycarbonate (PC)
- Peso do artigo: 67 gramos (2.36 onzas)
- Características especiais: Foldable design, Retractable Earbuds, Built-in Microphone, Passive Noise Cancellation (for calls)
- Compatibilidade: Smartphones (iPhone, Android), Tablets, Smart Speakers, other Bluetooth-enabled devices.
- Resistencia á auga: Non resistente á auga
8. Vídeos de produtos
8.1 BEARTWO Foldable Bluetooth Neckband Headphones Overview
Vídeo 8.1: Un oficial acabouview of the BEARTWO Foldable Bluetooth Neckband Headphones, highlighting key features and design elements.
9. Garantía e soporte
For warranty information, technical support, or further inquiries, please refer to the product packaging or visit the official BEARTWO store on Amazon: