1. Introdução
The ACREO OpenBuds are a new generation of true open-ear wireless earbuds designed for comfort and stability during various activities. They feature ear hooks for a secure fit and an open-ear design that allows you to remain aware of your surroundings while enjoying high-quality audio. These earbuds are built with advanced acoustic technology to deliver a powerful sound experience.

Figure 1: ACREO OpenBuds designed for comfortable and steady wearing during outdoor activities.
2. O que está na caixa
Your ACREO OpenBuds package includes the following items:
- ACREO OpenBuds (Left and Right Earbuds)
- Estojo de carregamento
- Cabo de carregamento (USB-C)
- Manual do usuário
- Bolsa de transporte
Video 1: ACREO OpenBuds Unboxing and Quick Start Guide. This video demonstrates the contents of the product packaging.
3. Configuração e emparelhamento
Follow these steps to set up and pair your ACREO OpenBuds for the first time:
- Ligar: Abra o estojo de carregamento. Os fones de ouvido ligarão automaticamente e entrarão no modo de emparelhamento.
- Ative o Bluetooth: No seu smartphone ou dispositivo, ative o Bluetooth.
- Conectar: In your device's Bluetooth menu, search for "ACREO OpenBuds" and select it to connect.
- Reconexão automática: After the first successful connection, the earbuds will automatically connect to the most recently paired device when removed from the case.
4. Controles operacionais
The ACREO OpenBuds feature a single physical button on each earbud for controlling various functions:
- Ligar/desligar: Pressione e segure um dos fones de ouvido por 5 segundos.
- Reproduzir/Pausar: Short press either earbud once.
- Aumentar o volume: Double press the Right earbud.
- Volume baixo: Double press the Left earbud.
- Próxima faixa: Pressione e segure o fone de ouvido direito por 2 segundos.
- Faixa anterior: Pressione e segure o fone de ouvido esquerdo por 2 segundos.
- Ativar o assistente de voz (Siri): Triple press either earbud.
- Atender/Desligar Chamada: Short press either earbud once.
- Rejeitar chamada: Pressione e segure qualquer um dos fones de ouvido.

Figure 2: Earbud control functions.
5. Carregamento
The ACREO OpenBuds charging case supports both USB-C cable charging and wireless charging. The earbuds provide up to 6 hours of playtime on a single charge, and the charging case extends total playtime to up to 18 hours.
- Carregando o estojo: Connect the provided USB-C cable to the charging port on the case, or place the case on a compatible wireless charging pad. Four white indicator lights on the case will show the charging status.
- Carregando os fones de ouvido: Coloque os fones de ouvido no estojo de carregamento. Eles começarão a carregar automaticamente.
- Tempo de carregamento: Aproximadamente 1.5 horas para uma carga completa.

Figure 3: Charging the ACREO OpenBuds case wirelessly.
6. Maintenance & Durability
The ACREO OpenBuds are designed for durability and reliability, featuring IPX7 waterproofing. This makes them suitable for active lifestyles and various weather conditions.
- IPX7 Impermeável: The earbuds are sweat-proof, splash-proof, and rainproof. They are ideal for workouts, running, and other sports activities.
- Limpeza: Regularly wipe the earbuds and charging case with a soft, dry cloth to remove sweat, dirt, or debris.
- Armazenar: Guarde os fones de ouvido no estojo de carregamento quando não estiverem em uso para protegê-los e garantir que permaneçam carregados.

Figure 4: ACREO OpenBuds are IPX7 waterproof, making them resistant to sweat, splashes, and rain.
7. Especificações
| Nome do modelo | OpenBuds |
| Número do modelo | A8 |
| Marca | ACREO |
| Tecnologia de Conectividade | Sem fio (Bluetooth 5.1) |
| Alcance Bluetooth | 10 metros |
| Tipo de driver de áudio | Driver Dinâmico |
| Tamanho do driver de áudio | 16.2 milímetros |
| Resposta de frequência | 20Hz - 20kHz |
| Duração da bateria (fones de ouvido) | 6 horas |
| Duração da bateria (com estojo) | Até 18 horas |
| Tempo de carregamento | 1.5 horas |
| Nível de resistência à água | IPX7 (à prova d'água) |
| Peso do item | 10 gramas (0.353 onças) |
| Material | Plástico |
8. Solução De Problemas
If you encounter any issues with your ACREO OpenBuds, try the following troubleshooting steps:
- Sem problemas de som/conexão: Ensure both earbuds are charged and correctly paired with your device. Try turning Bluetooth off and on again on your device.
- Ligar/desligar manualmente: If earbuds do not power on automatically, press and hold either earbud for 5 seconds to manually turn them on or off.
- Restauração de fábrica: If persistent issues occur, perform a factory data reset. Refer to the user manual for specific instructions on how to press the function button seven times to restore factory settings.
- Modo de baixa latência: If experiencing audio delay, press the function button four times to switch between Low Latency Mode and Music Mode.
9. Garantia e Suporte
ACREO products are designed for reliability and user satisfaction. For warranty information, technical support, or any product-related inquiries, please refer to the contact details provided in your user manual or visit the official ACREO website.