1. Product Overview
The MARTUBE Retro Portable Bluetooth Speaker, model MAR-22E-011, combines vintage aesthetics with modern audio technology. This compact and lightweight speaker offers high-definition sound, Bluetooth 5.1 connectivity, and up to 9 hours of playtime, making it suitable for various indoor and outdoor settings.
Figure 1: Key features of the MARTUBE Retro Portable Bluetooth Speaker.
2. Package Contents
- 1 x MARTUBE Retro Portable Bluetooth Speaker (Model: MAR-22E-011)
- 1 x USB-C Charging Cable
- 1 x User Manual
Figure 2: Speaker and packaging, illustrating product dimensions.
3. Controls and Indicators
Familiarize yourself with the speaker's controls and indicators for optimal use.
- Top Knob: Power On/Off, Volume Control
- Front Button: Play/Pause, Bluetooth Pairing
- LED Indicator: Shows power status, charging status, and Bluetooth connection status.
Figure 3: Detailed view of speaker controls.
4. Setup
4.1 Charging the Speaker
- Connect the provided USB-C charging cable to the speaker's charging port.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The LED indicator will show charging status (e.g., red for charging, off or green for fully charged).
- A full charge provides up to 9 hours of playtime.
4.2 Powering On/Off
- To power on, long press the top knob until the LED indicator lights up and you hear an audible prompt.
- To power off, long press the top knob again until the LED indicator turns off.
Video 1: Demonstrates powering on the black MARTUBE Retro Bluetooth Speaker and adjusting volume.
5. Operating Instructions
5.1 Bluetooth Pairing
- Ensure the speaker is powered on. The LED indicator will flash, indicating it's in pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "Retro Bluetooth Speaker" from the list of devices.
- Once connected, the LED indicator will stop flashing and remain solid, and you will hear a confirmation sound.
- The speaker will automatically reconnect to the last paired device when powered on, if the device's Bluetooth is active and within range.
Figure 4: Bluetooth 5.1 connectivity for seamless audio streaming.
5.2 Playing Audio
- After successful pairing, start playing audio from your connected device.
- Use the front button on the speaker to Play/Pause audio.
- Rotate the top knob clockwise to increase volume and counter-clockwise to decrease volume.
6. Maintenance
- Keep the speaker dry. Although it has a water-repellent rating, it is not waterproof and should not be submerged in water.
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Avoid exposing the speaker to extreme temperatures or direct sunlight for prolonged periods.
- Store the speaker in a cool, dry place when not in use.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker using the provided USB-C cable. |
| Cannot pair with Bluetooth device. | Speaker not in pairing mode; device Bluetooth off; too far from speaker. | Ensure speaker is on and flashing LED. Turn on device Bluetooth. Move device closer (within 10 meters). |
| No sound or low volume. | Volume too low on speaker or device; device not connected. | Increase volume using the top knob and on your device. Re-establish Bluetooth connection. |
| Sound distortion. | Volume too high; weak Bluetooth signal. | Reduce volume. Move device closer to the speaker. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | MAR-22E-011 |
| Brand | MARTUBE |
| Connectivity Technology | Bluetooth 5.1 |
| Bluetooth Range | Up to 10 meters (33 feet) |
| Speaker Maximum Output Power | 5 Watts |
| Audio Output Mode | Mono |
| Frequency Response | 1.2 KHz |
| Playtime | Up to 9 hours (on a full charge) |
| Power Source | Battery Powered |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Product Dimensions (D x W x H) | 1.69" x 2.52" x 3.5" |
| Item Weight | 7.8 ounces |
| Water Resistance Level | Water Repellent (not waterproof) |
9. Warranty and Support
The MARTUBE Retro Portable Bluetooth Speaker comes with a limited warranty. Please refer to the warranty card included in your package for specific terms and conditions.
For technical support or customer service, please visit the official MARTUBE website or contact their customer support team using the information provided in your product documentation.