Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your NAGFAK ERAZER X5 AI Translator Earbuds. Please read this manual thoroughly before using the product to ensure proper function and longevity.

Image: The ERAZER X5 AI Translator Earbuds in purple, shown with their charging case. The earbuds feature an open-ear design with ear hooks.
Package Contents
Verify that all items are present in the package:
- 1 Pair x ERAZER X5 AI Translator Earbuds
- 1 x Charging Case
- 1 x Charging Cable
- 1 x User Manual for Headphones
- 1 x User Manual for APP
- 1 x Silicone Neck Strap

Image: An illustration showing the ERAZER X5 earbuds, charging case, charging cable, user manuals, and silicone neck strap included in the product package.
Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and charging case. Connect the charging cable to the case and a power source. The charging indicator on the case will show the charging status. A full charge provides up to 40 hours of total playtime with the charging case.

Image: The ERAZER X5 earbuds and charging case with a large "40H" graphic, indicating the extended battery life.
2. Bluetooth Pairing
- Ensure the earbuds are charged.
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your mobile device (iOS or Android), go to Bluetooth settings and enable Bluetooth.
- Select "ERAZER X5" from the list of available devices to connect.
- A confirmation sound will indicate successful pairing.
Important: You must first connect the headphones to your phone via Bluetooth before connecting to the app.
3. App Download and Connection
The AI translation function requires the dedicated app. Follow these steps to download and connect:
- Scan the QR code provided in the manual or on the product packaging, or visit classicearjoy.com/app-download-h5 to download the app (compatible with iOS/Android).
- Install and open the app on your phone.
- Log in to the app.
- Ensure Bluetooth is enabled on your phone and the earbuds are connected via Bluetooth.
- Within the app, navigate to the device connection section and select "Add Headset". Find the corresponding model of your earbuds and select "Add".

Image: A visual guide demonstrating the three steps to download the app, log in, and add the ERAZER X5 earbuds for full functionality, including a QR code for app download.
Operating Instructions
Basic Touch Controls
The ERAZER X5 earbuds feature smart touch controls for various functions:
- Once Press: Play/pause music, answer/hang up phone calls.
- Long Press: Wake up voice assistant, reject incoming calls.
- Double Press: Double press the right earbud to increase volume; double press the left earbud to decrease volume.
- Triple Press: Triple press the left earbud for the previous song; triple press the right earbud for the next song.

Image: An illustration detailing the smart touch controls for the ERAZER X5 earbuds, including single, long, double, and triple press functions for music, calls, and voice assistant.
AI Translation Functions (via App)
The ERAZER X5 supports real-time translation in 135 languages through its dedicated app. Available modes include:
- AI Smart Dialogue Mode: Acts as a personal voice assistant, providing instant answers and inspiration.
- Face-to-Face Translation: Facilitates direct communication between two individuals speaking different languages.
- Touch Mode: Tap the earbud to initiate translation.
- Earbud + Phone Mode: One person speaks into the phone, and the other listens via the earbud, or vice versa.
- Free Talk Mode: Real-time translation for conversations.
- Translation Machine Mode: Utilizes the app interface for text and voice translation.

Image: A collage illustrating various AI translation modes of the ERAZER X5, including AI Dialogue Mode, Translation Machine Mode, Headphones+Phone Mode, Dual Headphones Translation Mode, and Anti-loss function.

Image: The ERAZER X5 earbuds and case, highlighting support for 135 languages with examples of French, American English, Spanish, and Korean translations.

Image: A comprehensive list of 135 languages supported by the ERAZER X5 AI Translator Earbuds, displayed alongside the earbuds and charging case.
Sleep Sound Effects
The app provides access to 42 offline sleep sound effects designed to aid relaxation and improve sleep quality.
Anti-Loss Function
Utilize the app's earbud tracking feature to locate misplaced earbuds.
Maintenance
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry cloth. Avoid using abrasive materials or harsh chemicals.
- Storage: When not in use, store the earbuds in their charging case to protect them and ensure they remain charged.
- Water Resistance: The earbuds are IPX5 waterproof, meaning they are resistant to sweat and light splashes of water. They are not designed for submersion in water. Ensure the charging port is dry before charging.

Image: A three-panel image showing the ERAZER X5 earbuds' IPX5 sweat resistance with water splashing, the anti-loss function displayed on a phone map, and the app's sound adjustment interface.
Troubleshooting
If you encounter issues with your ERAZER X5 earbuds, please refer to the following common solutions:
- Earbuds not connecting to phone:
- Ensure earbuds are charged.
- Turn off and on your phone's Bluetooth.
- Remove "ERAZER X5" from your phone's paired devices list and attempt to re-pair.
- Translation function not working:
- Verify that the earbuds are connected to your phone via Bluetooth.
- Ensure the earbuds are also connected within the dedicated translation app.
- Check your internet connection, as some translation features may require it.
- Update the app to the latest version.
- Low call volume or unclear audio during calls:
- Adjust the volume on your phone and using the earbud touch controls.
- Ensure the earbuds are properly seated in your ears.
- Clean any debris from the microphone ports.
- The CVC 8.0 algorithm and dual microphones are designed for clear calls; ensure no obstructions.
- Earbuds not charging:
- Ensure the charging cable is securely connected to both the case and the power source.
- Check if the charging case has power.
- Clean the charging contacts on both the earbuds and the case.
If problems persist, please contact customer support for assistance.
Specifications
| Model | ERAZER X5 |
| Brand | NAGFAK |
| Bluetooth Version | 5.4 |
| Translation Languages | 135 (via app) |
| Playtime (Earbuds) | Up to 6.5 hours |
| Total Playtime (with Case) | Up to 40 hours |
| Water Resistance Rating | IPX5 |
| Product Dimensions | 1.97 x 1.81 x 0.87 inches |
| Item Weight | 5 ounces |
| Battery Type | Lithium Polymer (included) |
| Audio Codecs | AAC/SBC |
Warranty Information
Specific warranty details are not provided in the product information. Please refer to the retailer or manufacturer's official website for current warranty terms and conditions.
Customer Support
For further assistance, technical support, or inquiries, please contact NAGFAK customer service through the contact information provided on their official website or through your purchase platform.
Manufacturer: NAGFAK