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Image: The LTC SS-503 TWS Wireless Earbuds shown with their charging case, highlighting the sleek white design and RGB lighting on the case.
The LTC SS-503 TWS Wireless Earbuds are designed for an immersive audio experience, featuring Bluetooth 5.1 connectivity, dual music and gaming modes, and a distinctive RGB light charging case. They are built for comfort and durability, with an IPX4 waterproof rating suitable for various activities.
Hauptmerkmale:
- Cool RGB Light: Customizable lighting modes on the charging case.
- IPX4 Wasserdicht: Resistant to splashes and sweat, ideal for workouts.
- Quick Charging & Long Playtime: Fast charging via USB-C or wireless, with extended battery life.
- Bluetooth 5.1 & Low Latency: Stable connection and minimal audio delay.
- Dual Mode (Music & Gaming): Optimierter Sound Profiles für verschiedene Verwendungszwecke.
- HiFi-Stereoklang: Delivers clear audio with deep bass and crisp treble.
- Simply Pairing & Touch Controls: Easy device connection and intuitive touch-sensitive controls.
Aufstellen
1. Lieferumfang
Upon unboxing, ensure the following components are present:
- LTC SS-503 TWS Wireless Earbuds (Left and Right)
- Kabelloses Ladecase
- USB-C-Ladekabel
- Benutzerhandbuch (dieses Dokument)
2. Erstes Aufladen
Vor dem ersten Gebrauch die Ohrhörer und das Ladecase vollständig aufladen.

Image: The charging case demonstrating both USB-C cable charging and wireless charging capabilities.
- Über USB-C-Kabel: Connect the provided USB-C cable to the charging case and a power source. The charging case will indicate charging status.
- Kabelloses Laden: Place the charging case on a compatible wireless charging pad. Ensure the case is properly aligned for efficient charging.
- Ladezeit: The charging case takes approximately 1.5 hours to fully charge. Earbuds charge when placed inside the case.
Note: Wireless charging devices with fast charging functions may adversely affect the charging case. Avoid using such devices to charge the case.
3. Koppeln mit Ihrem Gerät
The earbuds support hassle-free pairing with iOS/Android phones, Mac, or Windows laptops.

Image: A smartphone displaying Bluetooth settings, showing the "SS-503" earbuds available for connection, with the charging case open beside it.
- Erstmaliges Koppeln:
- Öffnen Sie das Ladecase. Die Ohrhörer schalten sich automatisch ein und wechseln in den Kopplungsmodus.
- Aktivieren Sie auf Ihrem Gerät (Smartphone, Tablet, Laptop) Bluetooth und suchen Sie nach verfügbaren Geräten.
- Select "SS-503" from the list of found devices to connect.
- Sobald die Verbindung hergestellt ist, bestätigt eine Sprachansage die erfolgreiche Kopplung.
- Anschließen an andere Geräte:
- To connect to a new device or reset pairing, open the earbud compartment without removing the earbuds.
- Press and hold the function key (MFB) in the middle of the charging case for approximately 5 seconds until both earbud indicators light up simultaneously. This indicates a successful reset.
- When the earbud indicators begin single blinking, the headset is in pairing state and ready to connect to a new device.
Bedienungsanleitung
1. Ein-/Ausschalten
- Einschalten: Öffnen Sie das Ladecase, und die Ohrhörer schalten sich automatisch ein und verbinden sich mit dem zuletzt gekoppelten Gerät.
- Ausschalten: Legen Sie die Ohrhörer zurück in das Ladecase und schließen Sie den Deckel. Sie schalten sich automatisch aus und beginnen mit dem Ladevorgang.
2. Tippen Sie auf Steuerung
The earbuds feature intuitive touch controls on both the left and right earbuds (MFB - Multi-Function Button).

Image: Diagram illustrating the touch control functions on the earbuds, including play/pause, track navigation, call management, and voice assistant activation.
| Funktion | Aktion |
|---|---|
| Abspielen/Pause | Tippen Sie einmal auf einen der Ohrhörer. |
| Nächstes Lied | Doppeltippen Sie auf den rechten Ohrhörer. |
| Vorheriges Lied | Doppeltippen Sie auf den linken Ohrhörer. |
| Anruf annehmen/beenden | Tippen Sie einmal auf einen der Ohrhörer. |
| Anruf ablehnen | Halten Sie einen der Ohrhörer 2 Sekunden lang gedrückt. |
| Activate Voice Assistant (Siri/Google) | Tippen Sie dreimal auf den linken Ohrhörer. |
3. Dual Mode Switching (Music/Gaming)
The LTC SS-503 earbuds offer two distinct audio modes for optimized performance.

Image: A smartphone screen displaying both music playback and a gaming interface, with icons indicating "Music Mode" and "Gaming Mode" for the earbuds.
- Umschalten der Modi: Press the right earbud's MFB for 3 seconds to switch between modes.
- Spielmodus: This mode is designed to weaken ambient sound and strengthen specific in-game audio cues, such as footsteps, providing a low-latency experience for immersive gaming.
- Musikmodus: This mode produces high-fidelity stereo sound with deep bass and clear treble, optimized for general music listening.
4. RGB Light Control (Charging Case)
The charging case features customizable RGB lighting.

Image: The charging case illuminated with vibrant RGB lights, emphasizing its colorful and fashionable design.
- Lichtmodi wechseln: Short press the MFB (Multi-Function Button) in the middle of the charging box to cycle through 9 different light modes.
- Licht ein-/ausschalten: Double-press the MFB in the middle of the charging box to turn the RGB lights on or off.
Wartung
Durch sachgemäße Pflege wird die Langlebigkeit und optimale Leistung Ihrer Ohrhörer gewährleistet.
- Reinigung: Regularly wipe the earbuds and charging case with a soft, dry, lint-free cloth. Avoid using abrasive materials or harsh chemicals. For ear tips, remove them and clean with mild soap and water, then dry thoroughly before reattaching.
- Wasserbeständigkeit (IPX4): The earbuds are IPX4 waterproof, meaning they are resistant to splashing water from any direction. This makes them suitable for workouts and light rain. However, they are not designed for submersion in water, swimming, or showering. Do not expose them to pressurized water or high-velocity water.
- Lagerung: Bewahren Sie die Ohrhörer bei Nichtgebrauch im Ladecase auf, um sie zu schützen und geladen zu halten. Lagern Sie sie an einem kühlen, trockenen Ort, geschützt vor extremen Temperaturen und direkter Sonneneinstrahlung.
- Batteriepflege: Um die Akkulaufzeit zu verlängern, sollten Sie die Ohrhörer und das Ladecase nicht häufig vollständig entladen. Laden Sie sie regelmäßig auf, auch wenn Sie sie längere Zeit nicht benutzen.

Image: The earbuds and charging case shown with water droplets, illustrating their IPX4 waterproof capability.
Fehlerbehebung
If you encounter issues with your LTC SS-503 earbuds, refer to the following common problems and solutions:
Issue 1: Only one earbud has sound.
This product supports a dual-host function, allowing use of a single earbud. If only one earbud has sound when both are in use, it may require a reset.
- Lösung: Place both earbuds back into the charging case. Close the lid, then open it again. This will reset and re-pair the earbuds. If the issue persists, perform a full reset as described in the "Connecting to Other Devices" section under Setup.
Issue 2: Occasional disconnection or unstable connection.
Bluetooth 5.1 technology provides a stable connection, but environmental factors can affect performance.
- Lösung:
- Ensure the effective connection distance (less than 10 meters) is maintained between the earbuds and your device.
- Avoid signal-blocking objects such as thick walls or large metal structures between your device and the earbuds.
- Ensure there is no significant electromagnetic interference from other electronic devices nearby.
- Try resetting the earbuds and re-pairing them with your device.
Issue 3: Earbuds or charging case not charging.
If your device is not charging as expected, check the following:
- Lösung:
- Verify that the USB-C cable is securely connected to both the charging case and the power adapter.
- Ensure the power adapter is functioning correctly and plugged into a live outlet.
- If using wireless charging, ensure the charging case is correctly positioned on the wireless charging pad and the pad is powered.
- Try using a different USB-C cable or power adapter to rule out faulty accessories.
- Clean the charging contacts on both the earbuds and inside the charging case with a dry cotton swab to ensure good connection.
Technische Daten
Detailed technical specifications for the LTC SS-503 TWS Wireless Earbuds:
| Besonderheit | Detail |
|---|---|
| Modellname | Sound Slave (SS-503) |
| Konnektivitätstechnologie | Kabellos (Bluetooth 5.1) |
| Bluetooth-Reichweite | Bis zu 10 Meter |
| Wasserbeständigkeit | IPX4 (wasserbeständig) |
| Akkulaufzeit der Ohrhörer | Bis zu 5 Stunden |
| Gesamtspielzeit (mit Ladeetui) | Bis zu 20 Stunden |
| Ladezeit (Case) | 1.5 Stunden |
| Steuerungstyp | Touch-Steuerung (Mediensteuerung) |
| Audiotreibertyp | Dynamischer Treiber |
| Frequenzbereich | 20 Hz – 20,000 Hz |
| Material | Plastik |
| Artikelgewicht | 5 Unzen (Gesamtpackung) |
| Farbe | Weiß |
Garantie und Support
LTC products are manufactured with high standards of quality. For specific warranty details, please refer to the warranty card included with your product or visit the official LTC webBewahren Sie Ihren Kaufbeleg als Kaufnachweis für eventuelle Garantieansprüche auf.
For further assistance, technical support, or inquiries, please refer to the official user manual PDF available online or contact LTC customer service through their official channels. The user manual PDF can be accessed via this link: LTC SS-503 User Manual (PDF).





