Introduction
Thank you for choosing the GOBOULT Mustang GT 20 Bluetooth Speaker. This manual provides essential information to help you set up, operate, and maintain your speaker. Please read these instructions carefully before use to ensure optimal performance and longevity of your device.
What's in the Box
- GOBOULT Mustang GT 20 Speaker
- User Manual
- Warranty Card
- Type-C Charging Cable (not explicitly listed but implied by 'Type-C Fast Charging')
Product Overview
Controls and Indicators
Familiarize yourself with the speaker's controls and indicators:

Image: Top view of the GOBOULT Mustang GT 20 speaker, highlighting the LED/Mode button, the multi-functional Ignition Shift Stick (joystick), and the Fuel Gauge Battery Bar.
- LED/Mode Button: Press to change RGB light modes or switch between input sources (Bluetooth, USB, TF Card).
- Ignition Shift Stick (Joystick):
- Press: Play/Pause music, Answer/End calls.
- Push Up/Down: Adjust Volume (+/-).
- Push Left/Right: Skip to Previous/Next Track.
- Fuel Gauge Battery Bar: Indicates the current battery level.
Ports
The rear panel of the speaker features various connectivity ports:

Image: Rear view of the GOBOULT Mustang GT 20 speaker, detailing the USB port, Type-C charging input, and TF card slot.
- USB Port: For playing audio from a USB drive.
- Type-C Charging Input: For charging the speaker's internal battery.
- TF Card Slot: For playing audio from a TF (MicroSD) card.
Setup
Initial Charging
Before first use, fully charge the speaker using the provided Type-C charging cable and a compatible USB power adapter (not included). The Fuel Gauge Battery Bar will indicate charging status and full charge.
Powering On/Off
- To Power On: Press and hold the Power button (usually integrated with the LED/Mode button or a separate small button near it) until the speaker powers on.
- To Power Off: Press and hold the Power button again until the speaker powers off.
Operating Instructions
Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth mode. If not, press the LED/Mode button to switch to Bluetooth mode. The speaker will enter pairing mode, indicated by a flashing LED.
- On your mobile device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "GOBOULT Mustang GT 20" from the list of devices.
- Once connected, the speaker will provide an audio confirmation, and the LED indicator will stop flashing.
The speaker utilizes Bluetooth 6.0 + EDR for fast and stable connectivity with low latency.
Multi-Connectivity Options
The GOBOULT Mustang GT 20 supports multiple audio input sources:

Image: The rear panel of the GOBOULT Mustang GT 20 speaker, illustrating the USB, Type-C charging, and TF card input options.
- USB Playback: Insert a USB drive containing audio files into the USB port. The speaker will automatically switch to USB mode and begin playback.
- TF Card Playback: Insert a TF (MicroSD) card containing audio files into the TF card slot. The speaker will automatically switch to TF card mode and begin playback.
To switch between input modes (Bluetooth, USB, TF Card), short press the LED/Mode button.
Dynamic RGB LED Lights
The speaker features built-in multi-mode RGB lights that sync with your music. Press the LED/Mode button (or a dedicated light button if present) to cycle through different lighting effects or turn them off.
Hands-Free Calling
When connected via Bluetooth to a smartphone, you can use the speaker for hands-free calls. Press the Ignition Shift Stick (joystick) to answer an incoming call and press it again to end the call.
Stereo Pairing (TWS Function)
If you have two GOBOULT Mustang GT 20 speakers, you can pair them together for a true wireless stereo experience.

Image: Two GOBOULT Mustang GT 20 speakers, one in Turbo Ice and one in Turbo Black, demonstrating the ability to link two units for enhanced stereo sound.
Specific instructions for TWS pairing are typically found in a dedicated section of the full user manual. Generally, you power on both speakers, ensure they are not connected to any device, then press a specific button on one speaker (often the play/pause or mode button) to initiate TWS pairing between the two units. Once paired, connect your device to one of the speakers.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker's exterior. Do not use abrasive cleaners, alcohol, or other chemical solvents.
- Water Resistance: The speaker is water repellent. Avoid submerging it in water or exposing it to heavy rain. Dry any moisture immediately.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures when not in use for extended periods.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Battery is depleted. | Connect the speaker to a power source using the Type-C cable and charge it. |
| No sound from the speaker. | Volume is too low; incorrect input source; device not connected. | Increase volume using the joystick. Press the LED/Mode button to select the correct input source. Ensure your device is properly paired via Bluetooth or connected via USB/TF card. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; Bluetooth disabled on device; too far from device. | Ensure the speaker is in Bluetooth pairing mode (flashing LED). Enable Bluetooth on your device. Move the speaker closer to your device (within 10 meters). |
| Sound is distorted or unclear. | Volume too high; low battery; interference. | Reduce the volume on both the speaker and your connected device. Charge the speaker. Move away from other electronic devices that may cause interference. |
Specifications
| Feature | Detail |
|---|---|
| Brand | GOBOULT |
| Model | Mustang GT 20 |
| Speaker Output Power | 20 Watts RMS |
| Connectivity | Bluetooth 6.0 + EDR, USB, TF Card |
| Audio Output Mode | Stereo (2.0 Channels) |
| Speaker Type | Portable Speaker with Dual Dynamic Drivers and Passive Bass Radiator |
| Special Features | Bass Boost, Dynamic RGB LED Lights, Lightweight, Portable, Stereo Pairing (TWS) |
| Bluetooth Range | Up to 10 meters |
| Water Resistance Level | Water Repellent |
| Battery Life | Up to 7 hours |
| Charging Port | Type-C |
| Dimensions (D x W x H) | 13.2 x 21.5 x 14 Centimeters |
| Weight | 1800 Grams |
| Battery Type | 1 Nonstandard Battery (included) |
| Country of Origin | China |
Warranty Information
The GOBOULT Mustang GT 20 Bluetooth Speaker comes with a 1-Year Manufacturer's Warranty from the date of purchase. Please retain your purchase receipt and the included Warranty Card for any warranty claims. The warranty covers manufacturing defects under normal use conditions.
Support
For further assistance, technical support, or warranty inquiries, please contact the manufacturer or refer to the contact information below:
- Manufacturer: EXOTIC MILE PRIVATE LIMITED
- Address: B-67, BLOCK B, WAZIRPUR INDUSTRIAL AREA, NORTH WEST DELHI DELHI, India-110052
You may also visit the official GOBOULT store on Amazon for product information and updates.

