1. Introduction
Thank you for choosing the EOENKK T75 Bone Conduction Wireless Bluetooth 5.3 Headphones. These innovative earphones are designed for comfort and performance, featuring an ear-clip, non-in-ear design, IPX5 waterproofing, and HiFi sound quality, making them ideal for sports and daily use. This manual will guide you through the setup, operation, and maintenance of your new headphones.
2. Package Contents
- T75 Wireless Headphones (Left and Right)
- Charging Case
- Charging Cable
- User Manual
3. Product Overview
The T75 headphones utilize advanced air conduction technology and an ergonomic ear-clip design for a comfortable, pain-free listening experience without blocking your ear canal. They offer panoramic surround stereo sound and sensitive touch controls.
Figure 1: T75 TWS Earbuds and Charging Case. Highlights True Wireless, IPX5 Waterproof, Smart Touch, and Bluetooth 5.3.
Figure 2: T75 Earbuds in Charging Case, emphasizing Air Conduction Black Technology, Panoramic Surround Stereo, Ear Clip Design, Sports Stability, and Sensitive Touch Control.
4. Getting Started
4.1 Initial Charging
Before first use, fully charge the headphones and the charging case. Connect the provided charging cable to the charging case and a USB power source. The indicator light on the charging case will show the charging status.
4.2 Power On/Off
- Power On: Open the charging case, and the earbuds will automatically power on. Alternatively, press and hold the touch control area on each earbud for a few seconds.
- Power Off: Place the earbuds back into the charging case and close the lid. They will automatically disconnect and power off. Alternatively, press and hold the touch control area on each earbud for a few seconds until you hear a power-off prompt.
4.3 Bluetooth Pairing
- Ensure the earbuds are charged and powered on.
- Open the charging case. The earbuds will enter pairing mode, indicated by a flashing LED light (if present).
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "T75" from the list of found devices.
- Once connected, you will hear a confirmation tone, and the LED indicator on the earbuds will stop flashing.
The earbuds support Bluetooth 5.3 for a stable and efficient connection.
5. Wearing the Earphones
The T75 headphones feature an ear-clip, non-in-ear design for maximum comfort and stability, especially during physical activities. They are designed to deliver sound directionally without entering the ear canal.
Figure 3: Proper wearing of the T75 headphones, highlighting the comfortable, non-in-ear, ergonomic design.
Figure 4: Illustration of directional sound delivery from the ear-clip design.
- Gently clip the earphone onto your ear, ensuring the speaker opening is positioned towards your ear canal for optimal sound.
- Adjust the position for a secure and comfortable fit. The skin-friendly material ensures pain-free wear even for extended periods.
6. Basic Operation
The T75 headphones feature sensitive touch controls for easy management of music and calls.
6.1 Music Playback
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Volume Up: Triple tap on the right earbud.
- Volume Down: Triple tap on the left earbud.
6.2 Call Management
- Answer/End Call: Single tap on either earbud.
- Reject Call: Press and hold on either earbud for 2 seconds.
6.3 Voice Assistant
- Activate Voice Assistant (Siri, Google Assistant, Xiaoai): Press and hold on either earbud for 3 seconds.
7. Advanced Features
7.1 Single Ear or Binaural Use
The T75 headphones support both single earbud use and binaural (both earbuds) use. You can use either the left or right earbud independently, or both together for a full stereo experience.
Figure 5: Illustration of single ear and binaural use modes.
7.2 Active Noise Cancellation (ANC)
The headphones feature Active Noise Cancellation to reduce ambient noise, allowing for a more immersive listening experience. This feature is automatically enabled or can be toggled via touch controls (refer to specific touch gestures if available, otherwise assume automatic).
7.3 Dual Connection
The T75 supports dual connection, allowing it to be simultaneously connected to two Bluetooth devices. This enables seamless switching between devices without re-pairing.
8. Maintenance
- Cleaning: Use a soft, dry cloth to clean the earbuds and charging case. Do not use harsh chemicals or abrasive materials.
- Water Resistance: The headphones are IPX5 waterproof, meaning they are resistant to splashes and sweat. Do not submerge them in water or expose them to heavy rain. Ensure they are dry before placing them back in the charging case.
- Storage: Store the headphones in their charging case when not in use to protect them and keep them charged. Avoid extreme temperatures.
9. Troubleshooting
- No Sound: Ensure the headphones are paired correctly and connected to your device. Check the volume levels on both the headphones and your device.
- Cannot Pair: Make sure the headphones are in pairing mode. Turn off Bluetooth on other nearby devices that might be interfering. Try resetting the headphones (refer to manufacturer's specific reset instructions if available, otherwise try placing them in the case and taking them out again).
- Intermittent Connection: Ensure there are no obstructions between the headphones and your device. Move closer to your device. Avoid environments with strong electromagnetic interference.
- Charging Issues: Check if the charging cable is securely connected. Ensure the charging case and earbuds are clean and free of debris that might obstruct charging contacts.
10. Specifications
Figure 6: Key technical specifications of the T75 headphones.
| Feature | Specification |
|---|---|
| Brand Name | EOENKK |
| Model | T75 |
| Wireless Type | Bluetooth 5.3 |
| Communication | True Wireless |
| Vocalism Principle | Hybrid Technology (Air Conduction) |
| Material | TPU, Silica Gel |
| Waterproof Rating | IPX5 |
| With Microphone | Yes |
| Active Noise-Cancellation | Yes |
| Volume Control | Yes |
| Control Button | Yes (Smart Touch) |
| Frequency Response Range | 40Hz-20KHz |
| Impedance | 32Ω |
| Sensitivity | 106±3dB |
| MIC Sensitivity | -42dB±3dB |
| Support APP | No |
| Certification | CE, FCC |
| Functions | For Video Game, Common Headphone, For Mobile Phone, HiFi Headphone, Sport, For Outdoor, For Swimming |
11. User Tips
- For optimal sound quality, ensure the earbuds are correctly positioned on your ears, directing sound towards the ear canal.
- When using for sports, double-check the secure fit to prevent them from falling off during vigorous activity.
- Regularly clean the charging contacts on both the earbuds and the case to ensure consistent charging.
12. Warranty and Support
For any product-related inquiries, technical support, or warranty claims, please contact the seller or refer to the product's official support channels. Keep your purchase receipt as proof of purchase.
