Xmenha YYK790 Wireless Bluetooth In-Ear Sleep Earbuds User Manual

1. Introduction

Thank you for choosing the Xmenha YYK790 Wireless Bluetooth In-Ear Sleep Earbuds. These earbuds are designed for comfort and convenience, particularly for users who require audio while sleeping or in situations where a discreet and comfortable fit is essential. Featuring Bluetooth 5.3 technology, a compact design, and extended battery life, the YYK790 provides a reliable audio experience. Please read this manual carefully before use to ensure proper operation and to maximize your enjoyment of the product.

2. Package Contents

Verify that all items are present in your package:

• 1 x Pair of YYK790 Sleep Headphones (Earbuds)
• 1 x Charging Case
• 1 x USB-C Charging Cable
• 1 x User Manual (this document)

3. Product Overview

The Xmenha YYK790 earbuds are engineered for a comfortable and secure fit, especially for side sleepers. The compact design ensures minimal protrusion, and the charging case provides convenient power on the go.

Figure 3.1: The YYK790 earbuds securely placed within their charging case. The case features a digital display for battery status.

Figure 3.2: The charging case features a dual LED power display, indicating the battery percentage of both the charging case and the individual left (L) and right (R) earbuds.

Figure 3.3: The YYK790 earbuds are specifically designed for comfort during sleep, allowing users to lie on their side without discomfort.

Figure 3.4: Illustrates the ergonomic and ultra-lightweight design of the earbuds, ensuring a comfortable and barely noticeable fit for extended wear.

Figure 3.5: Internal view of the 13mm speaker unit, designed to produce powerful bass and clear treble for a high-fidelity stereo audio experience.

Figure 3.6: The earbuds offer effective protection against rain and sweat, making them suitable for various activities. Note: They are not designed for swimming.

4. Setup

4.1 Charging the Earbuds and Case

Before first use, fully charge the earbuds and the charging case.

1. Place the earbuds into the charging case, ensuring they are correctly seated in their respective slots. The earbuds will begin charging automatically.
2. Connect the provided USB-C cable to the charging port on the case and the other end to a USB power source (e.g., wall adapter, computer USB port).
3. The LED display on the charging case will indicate the charging status. A full charge for the case typically takes 1-2 hours. The earbuds themselves charge within the case.

A fully charged case can provide approximately 4-5 additional charges for the earbuds, extending the total playtime to up to 48 hours.

4.2 Bluetooth Pairing

The YYK790 earbuds feature a one-step connection process for easy pairing.

1. Ensure your mobile device's Bluetooth is turned on.
2. Open the lid of the charging case. The earbuds will automatically power on and enter pairing mode.
3. On your device, search for Bluetooth devices and select "YYK790" from the list.
4. Once connected, you will hear an audible confirmation, and the earbuds will be ready for use.

The earbuds will automatically reconnect to the last paired device when removed from the case, provided Bluetooth is active on the device.

Figure 4.1: Visual guide for the one-step pairing process: simply pick up the earbuds from the charging case and connect to "YYK790" on your device.

5. Operating Instructions

The YYK790 earbuds are designed for intuitive use. Specific touch controls are managed via the connected device or through a dedicated app, if available.

5.1 Power On/Off

• Power On: Open the charging case lid, or remove the earbuds from the case. They will power on automatically.
• Power Off: Place the earbuds back into the charging case and close the lid. They will power off automatically and begin charging.

5.2 Audio Playback

Once paired, audio from your connected device will stream directly to the earbuds. Control playback (play, pause, skip tracks, volume) directly from your smartphone, tablet, or other Bluetooth-enabled device. The earbuds feature a Graphene diaphragm unit for high-fidelity sound quality, delivering powerful bass and clear treble.

5.3 Phone Calls

The earbuds support hands-free calling. When a call comes in, the audio will switch from your media to the call. Answer and end calls using your connected device. The integrated microphone, combined with acoustic noise cancellation technology, helps ensure clear communication even in noisy environments.

6. Maintenance

Proper maintenance ensures the longevity and optimal performance of your YYK790 earbuds.

• Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Avoid using abrasive materials or harsh chemicals. Gently clean the charging contacts on both the earbuds and the case to ensure proper connection.
• Storage: When not in use, store the earbuds in their charging case to protect them from dust and damage. Store in a cool, dry place away from extreme temperatures.
• Water Resistance: The earbuds are water-resistant, offering protection against sweat and light rain. However, they are not waterproof and should not be submerged in water or used for swimming.

7. Troubleshooting

If you encounter issues with your YYK790 earbuds, refer to the following common solutions:

1. Earbuds not pairing with device:
   • Ensure Bluetooth is enabled on your device.
   • Make sure the earbuds are fully charged and removed from the case.
   • Turn off Bluetooth on your device, then turn it back on and try searching again.
   • If previously paired, try "forgetting" or "unpairing" "YYK790" from your device's Bluetooth settings and then re-pair.
   • Ensure no other devices are actively connected to the earbuds.
2. Earbuds not charging:
   • Ensure the charging cable is securely connected to both the case and the power source.
   • Verify that the earbuds are correctly seated in the charging case and that the charging contacts are clean.
   • Check the charging case's battery level via the LED display.
   • Try a different USB-C cable or power adapter.
3. No sound or poor sound quality:
   • Check the volume level on both your device and the earbuds.
   • Ensure the earbuds are properly connected to your device.
   • Try playing audio from a different application or source.
   • Ensure the earbuds are clean and free from debris that might obstruct the speaker.
   • If experiencing static or clicks with music, especially with bass, these earbuds are optimized for clear audio and may not be ideal for high-bass music.
4. Earbuds disconnect intermittently:
   • Ensure the earbuds are within the Bluetooth range (approximately 10 meters) of your device.
   • Avoid physical obstructions between the earbuds and your device.
   • Ensure the charging case lid is not accidentally shifting the earbuds, causing disconnection from charging.

8. Specifications

9. Warranty and Support

For any questions, concerns, or issues regarding your Xmenha YYK790 Wireless Bluetooth In-Ear Sleep Earbuds, please contact our customer support.

If you receive a defective product or have any questions during use, please feel free to contact us. We are committed to resolving any issues within 24 hours.

Please refer to your purchase documentation or the retailer's website for specific warranty details and contact information.