1. Introduction
Thank you for choosing the TRANSFORMERS TF-T18 OWS Wireless Earphones. These open-ear hook headphones are designed for comfort, stable connectivity, and immersive sound, featuring a unique Transformers theme. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your new earphones.
2. Product Overview
2.1 Package Contents
- 2 x Bluetooth Earphones (Left and Right)
- 1 x Charging Case
- 1 x Charging Cable (Type-C)
- 1 x User Manual
2.2 Key Features
- Non-In-Ear Design: Ear hooks naturally distribute weight for comfortable, long-term wear.
- Bluetooth 5.4 Chip: Ensures stable transmission, low power consumption, and reliable connectivity.
- Open 3D Stereo Sound: Provides an immersive 3D surround sound field with rich details and high-definition audio.
- Directional Sound Transmission: Minimizes sound leakage and ensures clear, private voice calls.
- Intelligent Device Compatibility: Seamlessly connects with various devices including Android, Windows, and iOS systems.
- Ultra-long Battery Life: Extended usage time for uninterrupted listening.
- Built-in Microphone: For clear high-definition voice calls.

Figure 1: Overview of key features including non-in-ear design, Bluetooth 5.4, 3D sound, large dynamic diaphragm, and rich details.
3. Setup Instructions
3.1 Initial Charging
- Before first use, ensure the earphones and charging case are fully charged.
- Connect the provided Type-C charging cable to the charging port on the case and a suitable USB power source.
- The charging indicator on the case will show charging status. A full charge for the earphones takes approximately 1.5 hours, and for the charging case, approximately 1 hour.

Figure 2: Charging case and earbuds with battery life details.
3.2 Pairing with a Device
- Open the charging case. The earphones will automatically enter pairing mode.
- On your device (smartphone, tablet, computer), go to Bluetooth settings and turn Bluetooth on.
- Search for available devices and select "TRANSFORMERS TF-T18" from the list.
- Once connected, you will hear a confirmation tone, and the earphones will be ready for use.
- After the initial pairing, the earphones will automatically connect to the last paired device when removed from the case and Bluetooth is enabled on the device.

Figure 3: Bluetooth 5.4 chip for stable transmission.
4. Operating Instructions
4.1 Wearing the Earphones
The TF-T18 earphones feature an OWS (Open Wearable Stereo) ear hook design. Gently place the ear hook over your ear, ensuring the earbud speaker is positioned comfortably near your ear canal without entering it. Adjust for a secure and comfortable fit.

Figure 4: Proper wearing of the non-in-ear earphones for comfort.
4.2 Basic Controls
The earphones are equipped with control buttons for easy management of music and calls.
- Play/Pause: Single press the control button on either earphone.
- Next Track: Double press the control button on the right earphone.
- Previous Track: Double press the control button on the left earphone.
- Volume Up/Down: (Refer to specific model instructions if available, otherwise typically controlled via connected device or long press on specific earbud).
- Answer/End Call: Single press the control button on either earphone during an incoming call.
- Reject Call: Long press the control button on either earphone during an incoming call.
- Activate Voice Assistant: Triple press the control button on either earphone.
4.3 Making and Receiving Calls
With the built-in microphone, you can make and receive calls directly through your earphones.
- Ensure your earphones are connected to your phone.
- Use the control buttons as described above to manage calls.
- The directional sound transmission technology ensures clear communication while protecting your privacy.

Figure 5: HD video call functionality.
4.4 Video Demonstration
Video 1: Product demonstration including unboxing, wearing, music playback, water resistance, and call handling.
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the earphones and charging case. Avoid using harsh chemicals or abrasive materials.
- Storage: When not in use, store the earphones in their charging case to protect them from dust and damage. Keep them in a cool, dry place.
- Water Resistance: The earphones are designed to be water-resistant (specific IP rating not provided, but video shows immersion). Avoid prolonged exposure to water or submersion. Dry thoroughly if exposed to moisture.
- Charging: Use only the provided charging cable or a certified Type-C cable. Do not attempt to charge with damaged cables or chargers.
6. Troubleshooting (FAQ)
Q: Are the earphones comfortable to wear?
A: Yes, the headphones are designed with an OWS ear hook to fit most ear sizes comfortably, providing convenience without sacrificing comfort.
Q: Do they pair automatically with my phone, or do I have to connect manually each time?
A: After the first successful pairing, the earphones will automatically connect to your device when removed from the charging case, provided Bluetooth is enabled on your device.
Q: How long does it take to fully charge the earphones and case?
A: The earphones typically take about 1.5 hours to fully charge. The charging case takes approximately 1 hour to fully charge.
Q: Do these earphones have a built-in microphone?
A: Yes, they feature a built-in microphone for clear voice calls.
Q: Is sound leakage a serious issue with this open-ear design?
A: As long as the volume is not set to the maximum level, there will be minimal sound leakage. For ear health, it is recommended to avoid using maximum volume for extended periods.
7. Specifications
| Feature | Specification |
|---|---|
| Product Type | Ear-hook wireless headphones |
| Brand | TRANSFORMERS |
| Model | TF-T18 |
| Material | Plastic |
| Bluetooth Version | V5.4 |
| Bluetooth Transmission Distance | Up to 10 meters |
| Communication | True wireless |
| Style | OWS Ear Hook Headphones |
| Speaker Unit | Φ14.8mm |
| Vocalism Principle | Dynamic |
| Frequency Response Range | 20 - 20000Hz |
| Speaker Impedance | 32 Ω |
| Sensitivity | 119dB ±3dB |
| Max Output | 10mW |
| Total Harmonic Distortion | 1% |
| With Microphone | Yes |
| Active Noise-Cancellation | No |
| Volume Control | Yes |
| Control Button | Yes |
| Charging Port | Type-C |
| Earphone Battery Capacity | 40mAh * 2 |
| Charging Case Battery Capacity | 300mAh |
| Usage Time (single earphone) | About 5 hours |
| Charging Time (earphones) | About 1.5 hours |
| Charging Time (case) | About 1 hour |
| Functions | For Video Game, HiFi Headphone, Sport, For Outdoor, For Study |
| Compatibility | Android, Windows, iOS devices |
8. User Tips
- Optimal Comfort: Experiment with the ear hook placement to find the most comfortable and secure fit for your ear shape.
- Volume Control: While the earphones offer clear sound, avoid listening at maximum volume for prolonged periods to protect your hearing and minimize sound leakage to others.
- Regular Charging: For consistent performance, make it a habit to place the earphones back into their charging case when not in use. This ensures they are always ready for your next session.
- Device Compatibility: The earphones are compatible with a wide range of devices. If you encounter connection issues, ensure your device's Bluetooth is on and try re-pairing.
9. Warranty and Support
For any product-related inquiries, technical support, or warranty claims, please contact the seller or refer to the official TRANSFORMERS product support channels. Keep your purchase receipt as proof of purchase.





