1. Introduction
Welcome to the MZYDM M88 Open Ear Earbuds instruction manual. These earbuds are designed for comfort and stability, featuring Bluetooth 5.4 connectivity, IPX6 water resistance, and a long-lasting battery. This manual provides essential information for setup, operation, maintenance, and troubleshooting to ensure optimal performance.
2. Package Contents
Before you begin, please ensure all items are present in the package:
- MZYDM M88 Open Ear Earbuds (Left and Right)
- Charging Case
- USB Type-C Charging Cable
- User Manual (this document)

3. Setup and Pairing
3.1. Charging the Earbuds and Case
For first-time use, fully charge the earbuds and charging case. The charging case provides an additional 40 hours of playback, totaling an impressive 50 hours with the earbuds' 10-hour single charge playtime.
- Connect the provided USB Type-C cable to the charging port on the back of the charging case.
- Connect the other end of the cable to a compatible USB power source (e.g., wall adapter, computer USB port).
- The indicator light on the case will illuminate during charging and turn off when fully charged.
- Place the earbuds into the charging case. They will automatically begin charging.

3.2. Pairing with a Device
The MZYDM M88 earbuds utilize Bluetooth 5.4 technology for a stable and efficient connection.
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, computer), go to the Bluetooth settings.
- Search for available devices and select "M88" from the list.
- Once connected, you will hear an audio prompt, and the earbuds will be ready for use.

4. Operating Instructions
The MZYDM M88 earbuds feature smart touch controls for easy management of audio and calls.
4.1. Wearing the Earbuds
These open-ear earbuds feature a C-shape clip-on design for secure and comfortable wear, especially suitable for small ears and active use.
- Gently place the earbud speaker into your ear canal.
- Position the C-shaped clip securely over the top of your ear.
- Adjust for a snug yet comfortable fit. The design ensures stability without fully blocking ambient sounds.

4.2. Touch Controls
| Function | Action |
|---|---|
| Play/Pause | Single tap on either earbud |
| Next Track | Double tap on the Right earbud |
| Previous Track | Double tap on the Left earbud |
| Volume Up | Triple tap on the Right earbud |
| Volume Down | Triple tap on the Left earbud |
| Answer/End Call | Single tap on either earbud during an incoming call |
| Reject Call | Press and hold either earbud for 2 seconds |
| Activate Voice Assistant | Press and hold either earbud for 3 seconds |

5. Maintenance and Care
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Avoid using harsh chemicals or abrasive materials.
- Water Resistance: The earbuds are IPX6 water-resistant, meaning they can withstand splashes and sweat. Do not submerge them in water or expose them to high-pressure water jets. Ensure they are dry before placing them back in the charging case.
- Storage: Store the earbuds in their charging case when not in use to protect them and keep them charged. Avoid extreme temperatures.
- Battery Life: To prolong battery life, fully charge the earbuds and case at least once a month, even if not in regular use.
6. Troubleshooting
6.1. Earbuds Not Pairing
- Ensure both earbuds are fully charged.
- Turn off Bluetooth on your device, then turn it back on.
- Forget "M88" from your device's Bluetooth list and attempt to pair again.
- Place the earbuds back in the charging case, close the lid, wait a few seconds, then open it again to re-enter pairing mode.
6.2. No Sound or Low Volume
- Check the volume levels on both your device and the earbuds.
- Ensure the earbuds are properly seated in your ears.
- Reconnect the earbuds to your device.
6.3. Charging Issues
- Verify the charging cable is securely connected to both the case and the power source.
- Try using a different USB Type-C cable or power adapter.
- Ensure the charging contacts on the earbuds and inside the case are clean and free of debris.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | M88 |
| Brand | MZYDM |
| Connectivity Technology | Wireless (Bluetooth) |
| Bluetooth Version | 5.4 |
| Bluetooth Range | 10 Meters |
| Ear Placement | Open Ear |
| Water Resistance Level | IPX6 (Waterproof) |
| Battery Life (Earbuds) | 10 Hours |
| Total Playtime (with Case) | 50 Hours |
| Charging Time | 1 Hour |
| Control Method | Touch |
| Noise Control | Environmental Noise Cancellation |
| Item Weight | 4.2 ounces |
| Material | Silicone |
| UPC | 737879848838 |
8. Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact MZYDM customer service directly. Keep your purchase receipt for any warranty claims.
9. Product Videos
Bluetooth 5.4 Clip On Headphones, with Mic 40H Playtime
This video demonstrates the MZYDM M88 earbuds, highlighting their Bluetooth 5.4 connectivity and 40-hour playtime. It showcases the product's features and ease of use from the seller's perspective.