1. Introduction
The Piegricdiat Q26S Invisible Sleep Headphones are designed for comfortable and discreet audio listening, particularly for use during sleep or in environments where a low-profile earbud is preferred. Featuring Bluetooth 5.3 connectivity and an IPX6 waterproof rating, these earbuds offer a secure fit and reliable performance.
2. Package Contents
- Piegricdiat Q26S Invisible Sleep Headphones (Left and Right Earbuds)
- Charging Case
- User Manual
3. Product Overview
The Piegricdiat Q26S earbuds are engineered for minimal visibility and maximum comfort. Each earbud is small and lightweight, designed to sit securely within the ear without protruding. The accompanying charging case provides portable power and protection for the earbuds.

Figure 3.1: The Piegricdiat Q26S Invisible Sleep Headphones in green, showcasing their compact design.
4. Setup
4.1 Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. Place the earbuds into the charging case. Connect the charging case to a power source using a Type-C USB cable. The indicator lights on the case will show the charging status. A full charge for the earbuds takes approximately 1 hour, providing 6-8 hours of playback. The charging case extends total usage to about 40 hours.

Figure 4.1: A woman sleeping, with an inset showing the charging case and indicating 6-8 hours of battery life per charge and 40 hours with the case.
4.2 Power On/Off
- Power On: Open the charging case, and the earbuds will automatically power on. Alternatively, press and hold the touch area on both earbuds for 3 seconds.
- Power Off: Place the earbuds back into the charging case and close the lid. Alternatively, press and hold the touch area on both earbuds for 5 seconds.
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.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "Q26S" from the list of devices.
- Once connected, the earbud indicator light will stop flashing, and you will hear a confirmation tone.

Figure 4.2: An image demonstrating the one-step Bluetooth pairing process of the earbuds with a smartphone, showing successful connection.
5. Operating Instructions
5.1 Wearing the Earbuds
For optimal sound quality and comfort, ensure the earbuds are correctly positioned in your ears. Gently insert the earbud and then slightly tuck it to secure its position. The design is intended to be comfortable for side sleepers.

Figure 5.1: A visual guide showing the correct method to insert and tuck the earbuds into the ear for a secure and comfortable fit.
5.2 Touch Controls
The earbuds feature touch controls for various functions:
- Play/Pause: Click the touch area on either the Left (L) or Right (R) earbud.
- Previous Track: Press the touch area on the L earbud for 2 seconds.
- Next Track: Press the touch area on the R earbud for 2 seconds.
- Answer/Hang Up Call: Click the touch area on either earbud.
- Reject Call: Press the touch area on either earbud for 2 seconds.
- Voice Assistant: Triple-tap the touch area on either earbud.
- Volume Up: Double-click the R earbud.
- Volume Down: Double-click the L earbud.

Figure 5.2: A diagram illustrating the touch controls for the earbuds, including play/pause, track navigation, call management, voice assistant, and volume adjustment.
5.3 Sleep Mode
The Q26S features a dedicated sleep mode. When activated, all physical button functions on the earbuds are disabled to prevent accidental touches during sleep. Control of audio playback must then be managed directly from your connected device.

Figure 5.3: A couple sleeping, illustrating how the earbuds help block out ambient noise like snoring for a peaceful sleep.
5.4 IPX6 Waterproof Rating
The earbuds are rated IPX6 waterproof, meaning they are resistant to high-pressure water jets from any direction. This makes them suitable for use during light rain, sweating, or water sports like swimming and snorkeling. However, they are not designed for prolonged submersion or diving. Ensure the earbuds are dry before placing them back in the charging case to prevent damage.
6. Maintenance
6.1 Cleaning
Regularly clean your earbuds and charging case to maintain optimal performance and hygiene.
- Use a soft, dry, lint-free cloth to wipe the earbuds and charging case.
- For stubborn dirt, slightly dampen the cloth with water or a mild, non-abrasive cleaner. Avoid getting liquid into any openings.
- Do not use harsh chemicals, alcohol, or abrasive materials.
- Ensure earbuds are completely dry before placing them back in the charging case.
6.2 Storage
When not in use, store the earbuds in their charging case to protect them from dust, dirt, and physical damage. Store in a cool, dry place away from extreme temperatures.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Earbuds do not power on | Low battery | Charge the earbuds and charging case fully. |
| Cannot pair with device | Bluetooth off, earbuds not in pairing mode, device too far | Ensure Bluetooth is enabled on your device. Place earbuds in case, close, then reopen to enter pairing mode. Move device closer to earbuds. |
| No sound from earbuds | Volume too low, not connected, media paused | Increase volume on both earbuds and device. Reconnect earbuds. Check if media is playing. |
| Uncomfortable fit | Incorrect positioning | Adjust the earbuds' position in your ear, ensuring they are securely tucked. |
| Accidental touches during sleep | Sleep mode not activated | Activate sleep mode to disable earbud controls. Control playback from your device. |
8. Specifications
- Model: Q26S
- Brand: Piegricdiat
- Color: Green
- Ear Placement: In Ear
- Noise Control: Passive Noise Cancellation
- Connectivity Technology: Wireless (Bluetooth)
- Bluetooth Version: 5.3
- Water Resistance Level: IPX6 (Waterproof)
- Battery Charge Time: Approximately 1 Hour
- Battery Average Life: 6-8 Hours (earbuds), 40 Hours (with charging case)
- Control Method: Push Button, Touch
- Material: Silicone
- Frequency Range: 20 Hz - 20,000 Hz
9. Warranty and Support
This product comes with a standard manufacturer's warranty. For specific warranty details, please refer to the documentation included with your purchase or contact the retailer.
For technical support, troubleshooting assistance, or any inquiries regarding your Piegricdiat Q26S Invisible Sleep Headphones, please contact Piegricdiat customer service through the contact information provided on the product packaging or the official Piegricdiat website.