ECOXGEAR GDI-EX3W210
ECOXGEAR EcoExtreme 2 Dry Box Bluetooth Speaker User Manual
Model: GDI-EX3W210 | Brand: ECOXGEAR
1. Introduction
The ECOXGEAR EcoExtreme 2 is a rugged, waterproof, and dustproof dry box Bluetooth speaker designed to protect your smartphone and other small valuables while delivering clear, powerful audio. Its durable construction and advanced features make it ideal for outdoor adventures, beach trips, poolside relaxation, and more.
What's in the Box
- 1x EcoExtreme 2 Speaker
- 1x USB-C Cable
- User Guide
- 1x Carabiner

Figure 1: Front view of the EcoExtreme 2 speaker with control panel.
2. Setup
Charging the EcoExtreme 2
Before first use, fully charge your EcoExtreme 2. Locate the USB-C charging port inside the dry box compartment. Connect the provided USB-C cable to the speaker and a compatible USB power source (not included). The battery indicator lights on the front of the speaker will illuminate during charging. All lights will be solid when fully charged. Charging time is approximately 3 hours. The speaker can play audio while recharging.

Figure 2: Interior view of the EcoExtreme 2 dry box with charging port.
Initial Bluetooth Pairing
Ensure your EcoExtreme 2 is charged and powered on. Press and hold the Bluetooth button on the speaker's control panel until the Bluetooth indicator light flashes, indicating pairing mode. On your smartphone or Bluetooth-enabled device, navigate to Bluetooth settings and select "EcoExtreme 2" from the list of available devices. Once connected, the Bluetooth indicator light on the speaker will become solid.
3. Operating Instructions
Basic Controls
The EcoExtreme 2 features external buttons for convenient control of your device while it's safely stored inside.
| Button | Function |
|---|---|
| Power Button | Press to turn on/off. |
| Bluetooth Button | Press to enter Bluetooth pairing mode. |
| Microphone Button | Activates push-to-talk function (with Zello App). |
| Light Button | Controls internal light modes. |
| Volume Up/Down | Adjusts speaker volume. |
| Play/Pause | Controls media playback. |
| Previous/Next Track | Skips to previous or next audio track. |
Using the Dry Box
The EcoExtreme 2 features a watertight dry storage compartment for your smartphone, keys, and other small items. To open, unlatch the side clips and lift the lid. Place your device inside. Ensure the compartment is clean and free of debris before closing. Securely close the lid and fasten both side clips to maintain the waterproof seal.

Figure 3: Securing the dry box latches.
EcoCast Feature
Wirelessly connect up to 100 EcoCast enabled speakers for a synchronized audio experience. To initiate EcoCast, power on all speakers. On the primary speaker, press the EcoCast button (often indicated by a wave icon). On secondary speakers, press the EcoCast button to join the group. Ensure all speakers are within range for optimal performance.
Push-to-Talk (Zello App)
When linked with the Zello App on your smartphone (stored inside the dry box), the microphone button on the EcoExtreme 2 allows for push-to-talk communication. Refer to the Zello App's instructions for setup and usage.
4. Maintenance
Cleaning
Clean the exterior of the speaker with a soft, damp cloth. Avoid abrasive cleaners or solvents. For the dry box interior, wipe with a clean, dry cloth. Ensure no moisture remains before closing.
Waterproofing Care
The EcoExtreme 2 meets IP67 international standards for waterproofing and dustproofing. To maintain its waterproof integrity, always ensure the dry box lid is securely closed and both side latches are fastened before exposing the speaker to water or dust. Regularly inspect the rubber gasket around the dry box opening for any signs of wear, tears, or debris. A damaged gasket can compromise the waterproof seal.

Figure 4: EcoExtreme 2 floating in water.
5. Troubleshooting
No Power
- Ensure the battery is charged. Connect the USB-C cable and allow it to charge for at least 30 minutes.
- Press and hold the Power button for a few seconds to ensure it's not just in standby mode.
No Bluetooth Connection
- Ensure the EcoExtreme 2 is in pairing mode (flashing Bluetooth light).
- Turn off and on Bluetooth on your device.
- Forget "EcoExtreme 2" from your device's Bluetooth list and attempt to re-pair.
- Ensure your device is within 100 feet of the speaker.
Poor Sound Quality
- Check the volume levels on both the speaker and your connected device.
- Ensure there are no obstructions blocking the speaker grille.
- If in water, ensure the speaker is not submerged in a way that muffles the sound.
Water Inside Dry Box
- Immediately remove your device and dry both the device and the dry box thoroughly.
- Inspect the rubber gasket for damage or debris. Clean or replace if necessary.
- Ensure the latches are fully secured when closing the dry box.
6. Specifications
| Feature | Detail |
|---|---|
| Model Name | EcoExtreme 2 |
| Model Number | GDI-EX3W210 |
| Brand | ECOXGEAR |
| Material | Plastic |
| Speaker Type | Outdoor |
| Special Features | Portable, Waterproof, Lightweight, Built-In Microphone, Stereo Pairing |
| Recommended Uses | For Smartphones or Tablets |
| Compatible Devices | Smartphone, Tablet, MP3 Player |
| Unit Count | 1.0 Count |
| Controller Type | Push Button |
| Surround Sound Channel | 1.0 (Mono) |
| Color | Gray |
| Battery Life | Up to 15 Hours |
| Included Components | User Guide, 1x EcoExtreme 2, 1x USB-C Cable, 1x Carabiner |
| Product Dimensions (D x W x H) | 2.6"D x 5.5"W x 10.1"H |
| Item Weight | 22 Ounces (1.38 pounds) |
| Impedance | 4 Ohm |
| Waterproof Rating | IP67 |
| Battery Capacity | 2600 Milliamp Hours |
| Charging Time | Approximately 3 Hours |
| Bluetooth Range | Up to 100 Feet |
| Power Source | Battery Powered |
| Signal-to-Noise Ratio | 88 dB |
| Audio Driver Type | Dynamic Driver |
| Number of Microphones | 1 |
| Connectivity Protocol | Bluetooth |
| Manufacturer | Grace Digital |
| First Available Date | August 11, 2020 |
| Maximum Output Power | 15 Watts |
| Mounting Type | Dry Box |

Figure 5: Internal compartment dimensions.
7. Warranty and Support
Warranty Information
The ECOXGEAR EcoExtreme 2 comes with a Limited Warranty. Please refer to the included User Guide for detailed warranty terms and conditions.
Customer Support
For further assistance, technical support, or warranty claims, please contact ECOXGEAR customer service. Visit the official ECOXGEAR website for contact information and frequently asked questions: ECOXGEAR Store
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