Introduction
The HAYLOU Earhook 1 Open-Ear Earphones are designed for comfort and high-quality audio, featuring 360° Spatial Audio, 16.2mm large drivers, and advanced noise cancellation for clear calls. With Bluetooth 5.4 and dual-device connectivity, these earphones offer a seamless listening experience for various activities. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance.
Video: Overview of the HAYLOU Earhook 1 Earphones, showcasing design and features.
Getting Started
Package Contents
- Earbuds (x1 pair)
- Charging case (x1)
- Charging cable (x1)
- User manual (x1)

Image: HAYLOU Earhook 1 product parameters and package contents.
Initial Setup
- For first-time use, remove the protective films from the charging contacts of both earbuds.
- Fully charge the charging case and earbuds before first use.
Wearing the Earphones
Distinguish the left and right earbuds correctly. Slide the ear hook snugly along the auricle, securing it behind the ear. Adjust to find a comfortable and secure position.

Image: Visual guide for wearing the Earhook 1 earphones.
Pairing
- The earphones use Bluetooth 5.4 for a stable connection.
- After first pairing, the earbuds will automatically connect when the lid of the charging case is opened.
- The earphones support connection with two Bluetooth devices simultaneously, such as a mobile phone, tablet, or notebook, for multiple scenarios.
Operation
Touch Controls
Each earbud has independent touch control functions for convenient use:
- Double tap either earbud: Play/pause music.
- Double tap the left/right earbud: Answer/hang up a call.
- Triple tap the left earbud: Skip track backward.
- Triple tap the right earbud: Skip track forward.
- Press and hold either earbud for 2 seconds: Turn on/off low latency mode.
- Press and hold the left/right earbud for 1.5 seconds: Reject a call.

Image: Touch control guide for the earphones.
Customized APP
The Haylou Sound APP allows you to easily adjust EQ settings, customize touch controls, and more for a personalized listening experience.

Image: Haylou Sound APP interface for customization.
Find Earphones Function
If you misplace your earphones, you can use the anti-lost function through the dedicated APP to help locate them.

Image: Anti-lost function via the APP.
Key Features
Open-Ear Design for Comfort and Awareness
The open-ear design provides lightweight, all-day wear without pressure or stuffiness, allowing your ears to breathe freely. This design also ensures you remain aware of your surroundings, enhancing safety during daily commute or sports and fitness activities. It's a healthy choice as it doesn't enter ear canals, keeping them breathable and clean.

Image: Open-ear design benefits for comfort and awareness.
360° Spatial Audio
Experience an immersive listening experience with 360° Spatial Audio. The independent space cavity structure and bass enhancement algorithm deliver stereo sound with surging sound quality, improving the acoustic experience by 99% compared to ordinary earbuds.

Image: 360° Spatial Audio feature.
16.2mm Large Drivers for Stunning Sound Quality
Coupled with 16.2mm large drivers, these earbuds deliver deep bass, mellow mids, and vivid treble. The Digital Sound Enhanced Technology (DSE) and Dynamic Bass Enhanced Algorithm reduce distortion and improve bass performance, while automatically adjusting frequencies for balanced and natural sound.

Image: Internal structure highlighting 16.2mm large drivers.
4-Mic AI Noise Reduction for Crystal-clear Calls
The high-sensitivity 4-mic system, in conjunction with an AI noise reduction algorithm, accurately picks up human voice and reduces background noise for clearer call quality, even in bustling streets.

Image: AI-enhanced clear calls with 4-mic noise reduction.
Directional Audio Technology
All-new Directional Audio Technology greatly reduces sound leakage for secure listening anytime, anywhere. This, combined with advanced Bluetooth 5.4, ensures stable connection for lossless sound and protects your privacy.

Image: Directional Audio Technology and Bluetooth 5.4.
Long Battery Life
Enjoy up to 9 hours of playtime per charge, and a total of 40 hours with the charging case. The charging case features a smart LED display to check battery levels at a glance (only the black model supports power display).

Image: Battery life details.
Dual-Device Connection
Connect to two devices at the same time and seamlessly switch between them, enhancing productivity for study and life.

Image: Dual-device connection feature.
Maintenance and Care
Charging
- To charge the earbuds, place them back into the charging case.
- To charge the case, connect it to a power source using the provided USB-C charging cable.
- Charging time for earbuds is approximately 1.5 hours.
- Charging time for the charging case is approximately 2.5 hours.
Cleaning
- Wipe the earbuds and charging case with a soft, dry cloth.
- Avoid using abrasive cleaners or solvents.
- Ensure charging contacts are clean and dry before charging.
Storage
- Store the earphones in their charging case when not in use to protect them and keep them charged.
- Avoid extreme temperatures and humidity.
Troubleshooting
No Sound or Pairing Failure
- Ensure both earbuds are charged.
- Check if Bluetooth is enabled on your device.
- Make sure the earbuds are in pairing mode (usually indicated by a flashing light).
- Try unpairing and re-pairing the earbuds with your device.
- If connecting to a new device, ensure the earbuds are not connected to another device.
Charging Issues
- Verify the charging cable is securely connected to both the case and the power source.
- Check if the charging contacts on the earbuds and inside the case are clean and free of debris.
- Try using a different charging cable or power adapter.
Poor Sound Quality
- Ensure the earbuds are worn correctly and securely.
- Check the audio source for quality issues.
- Move closer to your connected device to avoid interference.
- Clean the earbud speakers if necessary.
Specifications
| Feature | Specification |
|---|---|
| Product Name | HAYLOU Earhook 1 Open-ear TWS Earbuds |
| Brand Name | Haylou |
| Wireless Connection | Bluetooth 5.4 |
| Charging Interface | Type-C |
| Earbud Input Parameter | 5V===100mA |
| Battery Life (with charging case) | Approx. 40 hours |
| Battery Life (single earbud) | Approx. 9 hours |
| Earbud Battery Capacity | 60mAh |
| Communication Range | 10 meters (open space with no obstacle) |
| Charging Time of Earbuds | Approx. 1.5 hours |
| Charging Time of Charging Case | Approx. 2.5 hours |
| Charging Case Battery Capacity | 600mAh |
| Material | PC, ABS |
| Driver Diameter | 16.2mm |
| Impedance Range | up to 32 Ω |
| Frequency Response Range | 20 - 20000 Hz |
| Features | With microphone, Active Noise Cancelling, Dual Connection |
| Waterproof | Yes |
| Support APP | Yes |
| Certifications | CE, RoHS |
| Origin | Mainland China |
Note: All data comes from Liesheng Lab, and actual usage may vary slightly depending on specific scenarios.
Warranty and Support
Product Guarantees
- Certified Brands & Genuine Items: This product is from a certified brand and is a genuine item.
- Free Returns: Enjoy free returns within 90 days of purchase.
- Fast Delivery Guarantee:
- Collect a $1.00 coupon for late delivery.
- Refund if package lost.
- Refund if items damaged.
- Refund if no delivery in 60 days.
- Security & Privacy: Your personal details are protected and not shared with third parties without consent.
Customer Support
For any further assistance, technical support, or warranty claims, please contact the Haylou Official Store customer service. Refer to your purchase platform for specific contact details.