Introducció
This manual provides detailed instructions for the SUNOL GM20 True Wireless Earbuds. Please read this manual carefully before using the product to ensure proper operation and to maximize your listening experience. These earbuds feature Bluetooth 5.3 connectivity, a waterproof design, and a charging case with an LED display.

Image: The SUNOL GM20 True Wireless Earbuds with their charging case, showcasing the design and LED display.
Contingut del paquet
Assegureu-vos que tots els elements siguin presents al paquet:
- GM20 True Wireless Earbuds (Left and Right)
- Estoig de càrrega
- Cable de càrrega
- Manual d'usuari
- Múltiples mides de puntes per a les orelles
Característiques del producte
- Tecnologia Bluetooth 5.3: Offers faster pairing, stable connection, and lower power consumption with an effective range of up to 10 meters.
- 48-Hour Playback: The charging case provides multiple charges, extending total listening time.
- IPX8 Impermeable: Designed to withstand water exposure, suitable for sports and outdoor activities.
- Pantalla LED: The charging case features an LED display to show battery life.
- Deep Bass Audio: Equipped with a 14mm dynamic bass unit for enhanced sound quality.
- Micròfon integrat: Supports hands-free calls with environmental noise reduction.
- Disseny ergonòmic: Lightweight and comfortable for extended wear.

Image: The GM20 earbuds and charging case, emphasizing Bluetooth 5.3 and high-definition sound quality.

Imatge: Una explosió view diagram illustrating the internal components of the earbud, highlighting the 13mm moving coil and composite diaphragm for high-fidelity sound.
Configuració
1. Càrrega dels auriculars i de l'estoig de càrrega
Before first use, fully charge the earbuds and the charging case. Connect the provided charging cable to the charging case and a USB power source. The LED display on the charging case will indicate the charging status and battery level. When charging the earbuds inside the case, the display will show their individual battery life.
2. Encès / apagat
- Encès: Els auriculars s'encendran automàticament quan es treguin de la funda de càrrega.
- Apagar: Torneu a col·locar els auriculars a l'estoig de càrrega perquè s'apaguin automàticament i comencin a carregar-se.
3. Vinculació amb un dispositiu
The earbuds support one-step pairing for convenience.
- Assegureu-vos que els auriculars estiguin carregats.
- Obre l'estoig de càrrega i treu els dos auriculars. S'encendran automàticament i intentaran connectar-se entre si.
- After approximately 10 seconds, the earbuds will enter pairing mode.
- Al dispositiu (telèfon intel·ligent, tauleta, etc.), activeu el Bluetooth i cerqueu els dispositius disponibles.
- Select "GM20 TWS" from the list of found devices to complete the pairing process.
- Un cop emparellats, els auriculars es connectaran automàticament a l'últim dispositiu emparellat quan es treguin de l'estoig de càrrega.

Image: The GM20 earbuds and charging case, illustrating the quick connect and pairing process with a smartphone.
Instruccions de funcionament
1. Posar-se els auriculars
Select the ear tips that provide the most comfortable and secure fit. Insert the earbuds gently into your ear canal and rotate slightly until they feel snug. A proper fit ensures optimal sound quality and noise isolation.
2. Controls bàsics
The earbuds feature a multifunction button for various controls:
- Reproduir/pausar música: Single press the multifunction button on either earbud.
- Següent cançó: Double press the multifunction button on the right earbud.
- Cançó anterior: Double press the multifunction button on the left earbud.
- Respondre/Finalitzar la trucada: Single press the multifunction button on either earbud during an incoming call or active call.
- Rebutja la trucada: Premeu i manteniu premut el botó multifunció de qualsevol dels auriculars durant una trucada entrant.
- Control de volum: (Note: Specific volume control via earbuds is not detailed in product information. Adjust volume via your connected device.)
3. Funcionalitat impermeable
The GM20 earbuds are designed with an IPX8 waterproof nano-coating, making them resistant to water. This feature makes them suitable for activities such as running, cycling, and other sports where exposure to sweat or light rain may occur. Avoid prolonged submersion in water.

Image: The GM20 earbuds and charging case in a gaming context, highlighting fast transmission and no delay for an enhanced experience.
Manteniment
1. Neteja
Regularly clean your earbuds and charging case to maintain optimal performance and hygiene. Use a soft, dry, lint-free cloth. For stubborn dirt, a slightly damp cloth can be used, but ensure no moisture enters the earbud openings or charging ports. Do not use harsh chemicals or abrasive materials.
2. 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. Guardeu la funda en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
3. Cura de la bateria
To prolong battery life, avoid fully discharging the earbuds and charging case frequently. Charge them regularly, even if not in constant use. Do not expose batteries to excessive heat.
Resolució de problemes
- Auriculars que no s'aparellen entre si: Place both earbuds back into the charging case, close the lid, wait a few seconds, then remove them again. They should automatically connect.
- Auriculars que no es connecten al dispositiu: Ensure Bluetooth is enabled on your device and the earbuds are in pairing mode. Forget "GM20 TWS" from your device's Bluetooth list and try pairing again.
- No se sent cap so d'un auricular: Check if both earbuds are charged. Try resetting them by placing them in the case and then removing them.
- Problemes de càrrega: Ensure the charging cable is securely connected and the power source is functional. Clean the charging contacts on both the earbuds and the case.
- Mala qualitat del so: Ensure the earbuds are properly seated in your ears. Try different sized ear tips for a better seal. Check the audio source device for any issues.
Especificacions tècniques
| Nom del model | GM20 (K8) |
| Versió Bluetooth | 5.3 |
| Interval Bluetooth | Fins a 10 metres |
| Durada de la bateria (auriculars) | Approximately 48 hours with charging case |
| Caixa de càrrega de la bateria | 600 mAh |
| Nivell de resistència a l'aigua | IPX8 |
| Tipus de controlador d'àudio | Controlador dinàmic de 14 mm |
| Interval de freqüència | 20 Hz - 20 kHz |
| Mètode de control | Tàctil/Botó |
| Material | Acrilonitril butadiè estirè (ABS) |
Informació de la garantia
The SUNOL GM20 True Wireless Earbuds come with a standard manufacturer's warranty. Please refer to the warranty card included in your package or contact customer support for specific details regarding warranty coverage and duration. Keep your proof of purchase for warranty claims.
Atenció al client
If you encounter any issues not covered in this manual or require further assistance, please contact SUNOL customer support. Contact information can typically be found on the product packaging or the official SUNOL weblloc.





