Introducción
This manual provides detailed instructions for the use, setup, and maintenance of your BACKWIN Wired Earbuds, Model B870. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.

The BACKWIN Wired Earbuds, featuring a 3.5mm jack and in-line controls, are designed for a wide range of audio devices.
Contenido del paquete
Verifique que todos los artículos estén presentes en el paquete:
- BACKWIN Wired Earbuds (Model B870)
- Ear Cushions (3 pairs: Small, Medium, Large)
- Estuche protector
- Manual de instrucciones (este documento)

Image showing the BACKWIN Wired Earbuds along with the included ear tips in various sizes and a protective pouch.
Configuración
1. Cómo seleccionar las almohadillas adecuadas
Proper ear tip selection is crucial for comfort, sound quality, and noise isolation. Experiment with the included Small (S), Medium (M), and Large (L) ear tips to find the best fit for your ears.
- Retire con cuidado las puntas de los oídos preinstaladas.
- Select a pair of ear tips that feel comfortable and create a good seal in your ear canal.
- Press the new ear tips firmly onto the earbud nozzles until they are securely attached.

Illustration demonstrating the ergonomic design of the earbuds and the three included ear tip sizes (S, M, L) for optimal fit.
2. Conexión a su dispositivo
The BACKWIN Wired Earbuds feature a standard 3.5mm audio jack for broad compatibility.
- Locate the 3.5mm audio jack on your smartphone, tablet, laptop, desktop PC, MP3 player, or game console.
- Insert the earbud's 3.5mm plug firmly into the device's audio jack until it clicks into place.
- Asegúrese de que la conexión sea segura para evitar interrupciones de audio.

The 3.5mm audio jack ensures wide compatibility with various devices including laptops, desktop PCs, smartphones (Android, iPhone), tablets (iPad), game consoles, and MP3 players.
Instrucciones de funcionamiento
In-line Remote Control Functions
The in-line remote allows for easy control of audio playback and calls without needing to access your device.

Detallado view of the multi-function in-line remote control, illustrating button functions for volume adjustment, track navigation, and call management.
- Subir volumen (+): Presione para subir el volumen.
- Bajar volumen (-): Presione para bajar el volumen.
- Botón multifunción (centro):
- Presione una vez: Play/Pause audio; Answer/End call.
- Pulse dos veces: Siguiente pista.
- Pulsación triple: Pista anterior.
- Micrófono incorporado: Located on the remote, allows for hands-free calling. Position the microphone near your mouth for clear communication.
Características y tecnología
Four-Speaker Sound System
Each earbud is equipped with two speakers: a moving coil speaker for powerful bass and an iron ring speaker for clear highs and noise reduction. This dual-driver design delivers a balanced and immersive audio experience.

Anatomy of the earbud's internal structure, highlighting the dynamic coil for bass and moving iron for treble, contributing to HiFi stereo sound.
Anti-Tangle Cable Design
The earbud cable is constructed from soft and elastic aerospace TPE hollow material, reinforced with copper wire and fiber. This design provides excellent durability, abrasion resistance, and significantly reduces tangling, ensuring a smooth user experience, especially during gaming with 0 latency.

Detailed cross-section of the TPE noise reduction cable, showing its robust construction with 244 copper cores and 200D bulletproof wire for durability and tangle prevention.
Clasificación IP67 a prueba de agua y polvo
The earbuds are rated IP67, offering protection against dust ingress and immersion in water up to 1 meter for 30 minutes. This makes them suitable for use during workouts or in light rain, but they are not intended for swimming or prolonged submersion.
Mantenimiento y cuidado
- Limpieza: Limpie periódicamente las puntas de los oídos con un paño suave y seco.amp cloth. For the earbud nozzles, gently wipe away any earwax or debris using a dry cotton swab. Do not use harsh chemicals or abrasive materials.
- Almacenamiento: When not in use, store the earbuds in the provided protective case to prevent tangling and damage.
- Exposición al agua: While IP67 rated, avoid unnecessary exposure to water. If they get wet, dry them thoroughly before storing or using again. Do not charge or connect to a device if the jack is wet.
- Cuidado de cables: Avoid sharp bends or excessive pulling on the cable to maintain its integrity.
Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| Sin sonido o volumen bajo |
|
|
| Distorsión del sonido o crujidos |
|
|
| El micrófono no funciona |
|
|
Presupuesto
| Nombre del modelo | B870 |
| Tecnología de conectividad | Con cable (conector de 3.5 mm) |
| Configuración de altavoces | Four-speaker system (Moving Coil + Iron Ring per earbud) |
| Material del cable | Aerospace TPE hollow material with copper wire and fiber |
| Clasificación de resistencia al agua | IP67 (a prueba de polvo y agua) |
| Tipo de control | In-line Volume Control, Multi-function Button |
| Micrófono | Incorporado |
| Colocación de orejas | En el oído |
| Control de ruido | Aislamiento de sonido |
| Peso del artículo | 1.13 onzas |
Garantía y soporte
The BACKWIN Wired Earbuds (Model B870) come with a 2 año de garantía A partir de la fecha de compra. Esta garantía cubre defectos de fabricación y mano de obra en condiciones normales de uso.
La garantía no cubre:
- Daños causados por mal uso, abuso, accidente o negligencia.
- Desgaste normal.
- Reparaciones o modificaciones no autorizadas.
- Damage from improper storage or extreme environmental conditions.
For warranty claims or technical support, please contact BACKWIN customer service through the retailer where the product was purchased or visit the official BACKWIN websitio para información de contacto.
Conserve su comprobante de compra para validar la garantía.



