1. Introduction
Welcome to the UBON BT-75 Wireless Earbuds user manual. These earbuds are designed to provide a high-quality audio experience with seamless connectivity and a comfortable fit. Featuring Bluetooth 5.3, a noise-cancelling microphone, and extended playtime, the BT-75 is suitable for various activities, including sports.
Video Description: This video provides a brief overview of the UBON BT-75 Wireless Earbuds, highlighting key features such as crystal clear audio, 10-meter wireless range, touch controls, 32-ohm impedance, and Bluetooth 5.3 connectivity. It also mentions the 30-hour playtime and 250mAh charging case.
2. What's in the Box
Upon opening your UBON BT-75 Wireless Earbuds package, you should find the following items:
- UBON BT-75 Wireless Earbuds (Left and Right)
- Charging Case
- Charging Cable
- User Manual
3. Product Overview
The UBON BT-75 Wireless Earbuds feature a sleek, in-ear design crafted from durable plastic, ensuring both comfort and longevity. The accompanying charging case is compact and designed for portability.

Image Description: This image displays the UBON BT-75 Wireless Earbuds placed inside their open charging case. The earbuds are dark-colored with red accents, and the case matches the color scheme, indicating a sporty and modern design.
4. Setup
4.1 Charging the Earbuds and Case
Before first use, fully charge the earbuds and charging case. The charging case is equipped with a Type-C port for convenient power input.
- Place the earbuds into their respective slots in the charging case. Ensure they are seated correctly.
- Connect the provided Type-C charging cable to the charging port on the case and plug the other end into a USB power source.
- The indicator lights on the case will show the charging status. Once fully charged, the lights will indicate completion or turn off.

Image Description: This image shows the bottom view of the UBON BT-75 charging case, clearly highlighting the Type-C charging port. The UBON logo is visible on the top surface of the case.
4.2 Pairing with a Device
The UBON BT-75 earbuds utilize Bluetooth 5.3 for a stable and efficient wireless connection. Follow these steps to pair them with your smartphone, tablet, laptop, or other compatible device:
- Ensure the earbuds are charged and placed in the charging case.
- Open the charging case. The earbuds will automatically enter pairing mode, and their indicator lights will flash.
- On your device, go to Bluetooth settings and turn Bluetooth on.
- Search for available devices and select "UBON BT-75" from the list.
- Once connected, the earbuds' indicator lights will stop flashing, and your device will confirm the connection.

Image Description: This image showcases the UBON BT-75 Wireless Earbuds and their charging case, emphasizing the Bluetooth V5.3 wireless version for seamless connectivity. The earbuds are shown both inside and outside the case.
5. Operating Instructions
5.1 Basic Controls (Touch Functions)
The UBON BT-75 earbuds feature intuitive touch controls for managing audio playback, calls, and voice assistants. The specific touch gestures are as follows:
- Music Play/Pause: Single tap on either earbud.
- Music Next/Back: Double tap on the right earbud for next, double tap on the left earbud for previous.
- Volume +/-: Triple tap on the right earbud for volume up, triple tap on the left earbud for volume down.
- Call Receive: Single tap on either earbud during an incoming call.
- Call Reject: Press and hold either earbud during an incoming call.
- Google/Siri Assistant: Press and hold either earbud for 2 seconds.

Image Description: This image illustrates the various touch control functions of the UBON BT-75 earbuds, including controls for music playback (play/pause, next/back, volume), call management (receive, reject), and activating voice assistants (Google/Siri).
5.2 Wearing the Earbuds
For optimal sound quality and comfort, ensure the earbuds are properly seated in your ears. The in-ear design provides sound isolation and a secure fit, especially during physical activity.
- Identify the Left (L) and Right (R) earbuds.
- Gently insert each earbud into your ear canal.
- Rotate the earbud slightly until it feels snug and comfortable.
6. Maintenance
To ensure the longevity and optimal performance of your UBON BT-75 Wireless Earbuds, follow these maintenance guidelines:
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the earbuds in their charging case to protect them from dust and damage.
- Water Resistance: The earbuds are water-resistant, but they are not waterproof. Avoid submerging them in water or exposing them to heavy rain. Dry them thoroughly if they get wet.
- Charging: Use only the provided charging cable or a certified Type-C cable. Avoid overcharging.
7. Troubleshooting
If you encounter any issues with your UBON BT-75 Wireless Earbuds, refer to the following common troubleshooting steps:
- Earbuds not pairing: Ensure both earbuds are charged. Place them back in the case, close it, then open it again to re-enter pairing mode. Make sure Bluetooth is enabled on your device and try pairing again.
- No sound from one earbud: Try resetting the earbuds by placing them in the charging case and then taking them out. Ensure both earbuds are connected to your device.
- Charging issues: Check if the charging cable is securely connected to both the case and the power source. Try a different charging cable or power adapter. Ensure the charging port is clean and free of debris.
- Low volume: Adjust the volume on both your connected device and using the earbud touch controls. Ensure the earbuds are properly seated in your ears.
- Intermittent connection: Ensure you are within the 10-meter wireless range of your device. Avoid obstacles between the earbuds and your device.
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | BT-75 |
| Wireless Version | Bluetooth v5.3 |
| Wireless Range | Up to 10 meters (without obstacles) |
| Earbud Battery Capacity | 30mAh per earbud |
| Charging Case Battery Capacity | 250mAh |
| Talk/Playtime | Up to 30 hours (with charging case at moderate volume) |
| Standby Time | 400 Hours |
| Impedance | 32 Ohms |
| Noise Control | Sound Isolation |
| Control Method | Touch |
| Material | Plastic |
| Water Resistance Level | Water Resistant |
| Compatible Devices | Smartphones, Tablets, Laptops, Desktops, Smart Speakers |
9. Warranty and Support
For warranty information and customer support, please refer to the warranty card included in your product packaging or contact the manufacturer directly. The manufacturer contact information is provided below:
Manufacturer/Importer: CAPITAL SERVICE CENTRE, Off. No.1, Office Unit No.1,2, Basement, Ashok Vihar, Ph-II, New Delhi-52.
Please retain your proof of purchase for any warranty claims.