1. Introduction
Thank you for choosing the Langsdom GT4 Dual Driver Earbuds. These wireless earbuds are designed to provide a superior audio experience with dual dynamic drivers, Bluetooth 5.0 connectivity, and convenient touch controls. This manual will guide you through the setup, operation, and maintenance of your new earbuds.
2. Package Contents
Please check the package for the following items:
- Langsdom GT4 Dual Driver Earbuds (Left and Right)
- Charging Case
- USB-C Charging Cable
- Soft Ear Caps (S, M, L sizes)
- User Manual
Image: Contents of the Langsdom GT4 earbud package, including earbuds, charging case, USB-C cable, and various ear tip sizes.
3. Product Overview
The Langsdom GT4 earbuds feature advanced technology for an immersive audio experience.
3.1 Dual Dynamic Drivers
Each earbud is equipped with two 8mm dynamic drivers, providing enhanced bass and clear treble for a rich sound profile.
Image: Diagram illustrating the dual 8mm dynamic drivers within the Langsdom GT4 earbuds, highlighting superior audio sound with AAC and SBC support.
3.2 Bluetooth 5.0 Technology
Utilizing Bluetooth 5.0, the earbuds offer a stable and fast connection, ensuring high-quality audio transmission and compatibility with various devices.
Image: Close-up of the Bluetooth 5.0 chip inside the earbud, emphasizing HD call quality, wide compatibility, and long battery life.
3.3 Long Battery Life
The earbuds provide up to 5 hours of playtime on a single charge, with the charging case extending total playtime to approximately 30 hours.
Image: Graphic showing the Langsdom GT4 earbuds and charging case, indicating 1.2 hours charging time, 5 hours play time, and 30 hours total endurance time.
3.4 Ergonomic Design
Designed for comfort and stability, each earbud weighs only 4g and comes with three sizes of silicone ear tips to ensure a secure fit for extended wear.
Image: A person wearing the Langsdom GT4 earbuds, demonstrating their comfortable and secure fit.
4. Setup Instructions
4.1 Charging the Earbuds and Case
- Place the earbuds into the charging case. Ensure they are correctly seated.
- Connect the USB-C charging cable to the charging port on the case and to a power source.
- The indicator light on the charging case will show charging status. A full charge takes approximately 1.2 hours for the earbuds and case.
Image: Close-up of the USB-C charging port on the Langsdom GT4 charging case, with a charging cable connected.
4.2 Pairing with a Device
- Open the lid of the charging case. The earbuds will automatically power on and enter pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth.
- Search for "GT4" in the list of available Bluetooth devices and select it to connect.
- Once connected, you will hear a confirmation tone, and the earbuds will be ready for use.
Image: A smartphone screen showing the Bluetooth settings with "GT4" selected for pairing, next to the open charging case with earbuds.
5. Operating Instructions
5.1 Touch Controls
The Langsdom GT4 earbuds feature intuitive touch controls. Gently tap the touch sensitive area on either earbud to perform the following actions:
| Action | Left Earbud (L) | Right Earbud (R) |
|---|---|---|
| Play/Pause | 1 Tap | 1 Tap |
| Volume Up | - | 2 Taps |
| Volume Down | 2 Taps | - |
| Next Song | Long Press 3s | - |
| Previous Song | - | Long Press 3s |
| Answer/End Call | 1 Tap | 1 Tap |
| Reject Call | 2 Taps | 2 Taps |
| Activate Voice Assistant (Siri/Google) | 3 Taps | 3 Taps |
| Game Mode / Exit Game Mode | 3 Taps | - |
Image: Diagram illustrating the various touch control functions on the Langsdom GT4 earbuds, including play/pause, volume, call management, and voice assistant activation.
5.2 Music and Game Modes
The GT4 earbuds offer a dual-mode function for optimized audio performance based on your activity.
- Music Mode: Provides rich stereo bass and clear sound for an immersive listening experience.
- Game Mode: Reduces latency for synchronized audio and video, enhancing your gaming experience.
To switch between modes, tap the left earbud 3 times.
Image: Graphic comparing Music Mode (low latency, stereo bass) and Gaming Mode (zero delay, synchronization) for the Langsdom GT4 earbuds.
6. Maintenance
- Clean the earbuds and charging case regularly with a soft, dry cloth.
- Avoid exposing the earbuds to extreme temperatures, humidity, or liquids.
- Store the earbuds in their charging case when not in use to protect them and maintain battery life.
- Do not attempt to disassemble or repair the earbuds yourself. Contact customer support for assistance.
7. Troubleshooting
| Problem | Solution |
|---|---|
| Earbuds not pairing | Ensure earbuds are charged. Turn off and on Bluetooth on your device. Forget "GT4" from your device's Bluetooth list and re-pair. |
| Only one earbud working | Place both earbuds back in the charging case, close the lid, then open it again. Ensure both earbuds are charged. |
| Low volume or poor sound quality | Adjust volume on both earbuds and your device. Ensure ear tips are properly sealed in your ear. Clean any debris from the earbud speakers. |
| Earbuds not charging | Check the charging cable and power source. Ensure earbuds are correctly seated in the charging case. Clean charging contacts on earbuds and case. |
| Connectivity issues (disconnections) | Ensure your device is within the Bluetooth range (33-50 feet). Avoid obstacles between earbuds and device. Try resetting the earbuds (refer to manufacturer's specific reset instructions if available, otherwise re-pair). |
8. Specifications
- Model: GT4
- Connectivity: Wireless (Bluetooth 5.0)
- Driver Size: Dual 8mm Dynamic Drivers per earbud
- Playtime: Up to 5 hours (earbuds), up to 30 hours (with charging case)
- Charging Time: Approximately 1.2 hours
- Charging Port: USB-C
- Control Type: Touch Control
- Earbud Weight: 4 grams (each)
- Material: Plastic
- Dimensions: 1.97 x 0.71 x 1.57 inches (Product)
9. Official Product Video
Video: An official product video showcasing the Langsdom GT4 Dual Driver Earbuds, demonstrating features like auto-pairing, dual drivers, Bluetooth 5.0, secure fit, and long battery life.
10. Warranty and Support
Langsdom products come with a standard manufacturer's warranty. For detailed warranty information, product support, or service inquiries, please refer to the warranty card included in your package or visit the official Langsdom website.
Contact Information: Please refer to the contact details provided on the product packaging or the official Langsdom website for customer service.
