Donerton I66
Donerton I66 Bluetooth 5.4 In-Ear Headphones User Manual
Model: I66
Introduction
Thank you for choosing the Donerton I66 Bluetooth 5.4 In-Ear Headphones. These wireless earbuds are designed to provide a superior audio experience with advanced features such as ENC Noise Cancelling for clear calls, deep bass, and a long-lasting battery. This manual will guide you through the setup, operation, and maintenance of your new headphones to ensure optimal performance and longevity.
What's in the Box
- Donerton I66 Wireless Earbuds (Left and Right)
- Charging Case
- USB-C Charging Cable
- S/M/L Eartips (one set pre-installed)
- User Manual

Product Overview
Familiarize yourself with the components and key features of your Donerton I66 headphones.
Key Features:
- Bluetooth 5.4: Ensures a fast, stable, and efficient wireless connection.
- Immersive Stereo Sound: Equipped with 13mm dual-layer diaphragm drivers for powerful bass, clear mids, and bright highs.
- ENC Noise Cancelling Mic: Four high-definition microphones filter out ambient noise for crystal-clear calls.
- Extended Playtime: Up to 6-8 hours of playtime per earbud, with a total of 45 hours using the charging case.
- LED Power Display: Separate indicators for earbud and charging case battery levels.
- Ergonomic Design: Lightweight and comfortable for extended wear, with S/M/L eartips for a secure fit.
- IP7 Waterproof: Nanocoating protects against sweat and light rain, suitable for workouts.
- Smart Touch Control: Intuitive touch sensors for managing music, calls, and voice assistant.



Setup
1. Initial Charging
Before first use, fully charge the earbuds and the charging case.
- Place both earbuds into the charging case.
- Connect the USB-C charging cable to the charging port on the case and plug the other end into a USB power adapter (not included).
- The LED display on the charging case will show the battery percentage. A full charge takes approximately 1.5 hours for the case.

2. Pairing with Your Device
The Donerton I66 earbuds feature one-step automatic pairing.
- Ensure Bluetooth is enabled on your device (smartphone, tablet, laptop, etc.).
- Open the lid of the charging case. The earbuds will automatically power on and enter pairing mode.
- On your device, search for Bluetooth devices and select "I66" from the list.
- Once connected, you will hear a confirmation tone, and the earbuds will be ready for use.
- For subsequent uses, simply open the charging case, and the earbuds will automatically reconnect to the last paired device.
The earbuds support both binaural (both earbuds) and mono (single earbud) modes, allowing flexible usage.

Operation
Smart Touch Controls:
The Donerton I66 earbuds feature intuitive touch controls on each earbud. The following table outlines the functions:
| Action | Function (Left Earbud) | Function (Right Earbud) |
|---|---|---|
| Single Tap (1x) | Play/Pause, Answer Call | Play/Pause, Answer Call |
| Double Tap (2x) | Volume Down | Volume Up |
| Triple Tap (3x) | Voice Assistant | Voice Assistant |
| Long Press 2s | Previous Song, Reject Call | Next Song, Reject Call |
Note: Functions may vary slightly depending on the connected device and application.
Maintenance
Cleaning:
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Remove eartips and clean any earwax or debris from the earbud nozzles using a small, soft brush or cotton swab.
- Do not use abrasive cleaners, alcohol, or chemical solvents.
Storage:
- When not in use, store the earbuds in their charging case to protect them and keep them charged.
- Store in a cool, dry place away from direct sunlight and extreme temperatures.
Water Resistance (IP7):
The Donerton I66 earbuds are IP7 waterproof, meaning they are protected against the effects of temporary immersion in water (up to 1 meter for 30 minutes). They are resistant to sweat and light rain, making them suitable for workouts. However, they are not designed for swimming or showering. Ensure earbuds are dry before placing them back in the charging case to prevent damage.

Troubleshooting
If you encounter any issues with your Donerton I66 headphones, please refer to the following common solutions:
| Problem | Possible Solution |
|---|---|
| Earbuds not pairing/connecting |
|
| Only one earbud working |
|
| Low volume or poor sound quality |
|
| Charging issues |
|
Specifications
| Feature | Detail |
|---|---|
| Model Number | I66 |
| Bluetooth Version | 5.4 |
| Driver Size | 13mm |
| Playtime per Charge | 6-8 hours |
| Total Playtime with Case | Up to 45 hours |
| Charging Time (Case) | Approx. 1.5 hours (USB-C) |
| Waterproof Rating | IP7 |
| Microphones | 4 (with ENC Noise Cancelling) |
| Compatibility | iOS, Android, Tablets, Laptops, TVs with Bluetooth |
| Dimensions (Packaging) | 8.8 x 8.1 x 3.6 cm |
| Weight (Product) | 90 grams |
Warranty and Support
Donerton products come with a standard manufacturer's warranty. For detailed warranty information, please refer to the warranty card included in your product packaging or visit the official Donerton website. If you require further assistance or have questions not covered in this manual, please contact Donerton customer support through their official channels.
You can visit the Donerton store on Amazon for more information: Donerton Store
Important Safety Information
- Do not disassemble or modify the product.
- Keep away from extreme temperatures, humidity, and liquids.
- Avoid prolonged listening at high volumes to prevent hearing damage.
- Dispose of the product and batteries responsibly according to local regulations.
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