1. Introduction
Thank you for choosing the HOCO EW72 Wireless Bluetooth Earbuds. These earbuds feature advanced Bluetooth 5.4 technology, Active Noise Cancellation (ANC), and a unique LED full-color touch screen on the charging case for intuitive control. Designed for an immersive audio experience, they are suitable for various activities including music listening and sports. Please read this manual carefully before use to ensure proper operation and to maximize your enjoyment of the product.

Figure 1: HOCO EW72 Charging Case with HD Display
2. Package Contents
Ensure all items are present in the package:
- HOCO EW72 Wireless Earbuds (Left and Right)
- Charging Case with LED Touch Screen
- Charging Cable (Type-C)
- User Manual
3. Specifications
| Feature | Specification |
|---|---|
| Brand Name | HOCO |
| Model | EW72 |
| Bluetooth Chip | JL AC7003 |
| Bluetooth Version | 5.4 |
| Charging Case Battery Capacity | 360mAh |
| Headset Battery Capacity | 30mAh |
| Single Headset Use Time | Up to 4 hours |
| Total Working Time (with case) | Up to 20 hours |
| Material | ABS |
| Dimensions (Charging Case) | 60.6 x 45.2 x 23mm |
| Total Weight | 57.6g |
| Driver Diameter | 13mm |
| Maximum Wireless Range | 10m-20m |
| Sound Isolating | Yes |
| Earcups Type | Sealed |
| Number Of Drivers | 2 |
| Charging Method | Cable (Type-C) |
| Headphone Pads Material | Silicone |
| With Microphone | Yes |
| Is Wireless | Yes |
| Support APP | Yes |
| Waterproof | Yes |
| Active Noise-Cancellation | Yes |
| Volume Control | Yes |
| Vocalism Principle | Dynamic |
| Connectors | Type C |

Figure 2: Product Parameters

Figure 3: Wireless 5.4 Technology Overview
4. Setup
4.1 Charging the Earbuds and Case
- Place the earbuds into the charging case.
- Connect the provided Type-C charging cable to the charging port on the case and a suitable USB power source.
- The LED touch screen on the case will display the charging status and battery levels.
- Ensure the case and earbuds are fully charged before first use.

Figure 4: Charging the Earbuds Case
4.2 Bluetooth Pairing
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, etc.), go to Bluetooth settings.
- Search for available devices and select "EW72" from the list.
- Once connected, the LED touch screen on the case will indicate successful pairing.
Video 1: HOCO EW72 Product Overview and Feature Demonstration
5. Operating Instructions
The HOCO EW72 features an intuitive LED full-color touch screen on the charging case for easy control of various functions. The earbuds themselves are designed for comfortable wear.

Figure 5: Comfortable Earbud Fit
5.1 Touch Screen Functions
The LED touch screen allows direct control over multiple features without needing to access your connected device. Simply tap or swipe on the screen to navigate and select options.
- Music Playback: Play, pause, skip tracks (next/previous).
- Volume Control: Adjust the listening volume.
- Noise Reduction Modes: Switch between Active Noise Cancellation (ANC) and Transparency modes.
- EQ Sound Effects: Select from five preset sound modes: Standard, Rock, Pop, Classic, and Jazz.
- Language Settings: Change the display language of the touch screen.
- Flashlight: Activate a built-in flashlight function.
- Find My Earphone: Locate misplaced earbuds by triggering an audible alert.
- Remote Selfie/Camera Control: Use the case as a remote shutter for your phone's camera.
- Wallpaper Switch: Customize the display background on the screen.
- Alarm Setting: Set alarms directly from the case.
- Date Settings: Adjust date and time.
- Incoming Call Reminder: View incoming call notifications.

Figure 6: Overview of Touch Screen Functions

Figure 7: LCD Touch Screen Details

Figure 8: Wallpaper and Sound Mode Selection
5.2 Active Noise Cancellation (ANC)
The EW72 earbuds feature Active Noise Cancellation to reduce ambient noise, providing a quieter listening experience. Use the touch screen on the charging case to toggle ANC on/off or switch to Transparency mode, which allows you to hear your surroundings.

Figure 9: Quiet Environment with ANC
5.3 Sound Quality
Experience pleasant sound quality with minimal distortion, ensuring a full range of immersive listening.

Figure 10: Pleasant Sound Quality
6. Maintenance
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Storage: Store the earbuds in their charging case when not in use to protect them and keep them charged.
- Water Resistance: The earbuds are waterproof, but the charging case is not. Avoid exposing the charging case to water or excessive moisture.
- Avoid Extreme Temperatures: Do not expose the device to extreme hot or cold temperatures, as this can damage the battery and internal components.
7. Troubleshooting
7.1 Pairing Issues
- Earbuds not connecting: Ensure both earbuds are in the charging case, then open the lid to activate pairing mode. Check your device's Bluetooth settings to ensure "EW72" is selected.
- Only one earbud working: Try resetting the earbuds by placing them in the case, closing the lid for a few seconds, then reopening. Re-pair with your device.
7.2 Sound Issues
- No sound or low volume: Check the volume levels on both your connected device and via the earbud case's touch screen. Ensure earbuds are properly seated in your ears.
- Sound cutting out: Ensure you are within the 10-20m wireless range of your device. Avoid obstacles that may interfere with the Bluetooth signal.
7.3 Charging Issues
- Earbuds or case not charging: Ensure the Type-C charging cable is securely connected to both the case and the power source. Check if the power source is working. Clean the charging contacts on the earbuds and inside the case.
8. User Tips
- Optimize Battery Life: To extend battery life, fully charge the case and earbuds regularly. When not in use, store the earbuds in the charging case.
- Experiment with EQ Modes: Utilize the five different EQ sound modes (Standard, Rock, Pop, Classic, Jazz) via the touch screen to find the best audio profile for your music.
- Utilize the 'Find My Earphone' Feature: If you misplace an earbud, use the 'Find My Earphone' function on the charging case's touch screen to emit a sound, helping you locate it quickly.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official HOCO website or contact your retailer. Keep your purchase receipt as proof of purchase.





