Introduction
Thank you for purchasing the 2BOOM Portable Wireless Bluetooth Speaker System. This manual provides detailed instructions for setting up, operating, and maintaining your speaker. Please read this manual thoroughly before using the product to ensure proper function and longevity.
Package Contents
Please check the package contents to ensure all items are present:
- 1 x 2BOOM Twister Speaker (Model: BX311R)
- 1 x Audio Cable
- 1 x Charging Cable
- 1 x User Manual
Note: This unit does not come with an attachable carry strap.
Product Overview

Figure 1: Front view of the 2BOOM Twister speaker, showcasing its cylindrical design with red end caps and a black carbon fiber textured body.

Figure 2: Diagram highlighting the key features of the speaker, including Deep Digital Bass, FM Radio capability, Colorful Light FX, and a Bluetooth range of 32.8 feet.

Figure 3: Detailed view of the speaker's control panel, indicating the location and function of the DC5V charging port, AUX input, OFF/ON switch, Mode button, Previous/Volume -, Play/Pause, Next/Volume +, MIC-VOL, Microphone input, USB input, and TF Card slot.

Figure 4: Angled view of the speaker's top, providing a clear perspective of the control panel and its various buttons and ports.

Figure 5: Image demonstrating the portability of the speaker, held by hand using its integrated carry handle.
Setup
Charging the Speaker
Before first use, fully charge the speaker. Connect the provided charging cable to the DC5V port on the speaker (refer to Figure 3) and the other end to a USB power adapter (not included) or a computer's USB port. The charging indicator light will illuminate during charging and turn off when fully charged.
Powering On/Off
Locate the OFF/ON switch on the control panel (refer to Figure 3). Slide the switch to the "ON" position to power on the speaker. Slide it to the "OFF" position to power off the speaker.
Operating Instructions
Bluetooth Connection
- Ensure the speaker is powered on. It will automatically enter Bluetooth pairing mode.
- On your Bluetooth-enabled device (smartphone, tablet, MP3 player), enable Bluetooth and search for available devices.
- Select "2BOOM Twister" from the list of devices.
- Once connected, the speaker will emit an audible confirmation. Your device will automatically remember the speaker for future connections.
- The Bluetooth connection range is up to 33 feet (10 meters).
Mode Selection
Press the "M" (Mode) button on the control panel (refer to Figure 3) to cycle through available modes: Bluetooth, FM Radio, AUX, USB, and TF Card.
FM Radio Operation
- Switch to FM Radio mode using the "M" button.
- Press and hold the "Play/Pause" button to automatically scan and save available FM stations.
- Use the "Previous/Volume -" and "Next/Volume +" buttons to navigate between saved stations.
AUX Input
Connect an external audio device (e.g., MP3 player, computer) to the AUX port on the speaker (refer to Figure 3) using the provided audio cable. Switch to AUX mode using the "M" button. Audio will now play through the speaker from your connected device.
USB Input
Insert a USB flash drive containing MP3 audio files into the USB port (refer to Figure 3). The speaker will automatically switch to USB mode and begin playing the audio files.
TF Card Input
Insert a TF (MicroSD) card containing MP3 audio files into the TF Card slot (refer to Figure 3). The speaker will automatically switch to TF Card mode and begin playing the audio files.
Microphone Input (Karaoke Function)
Connect a microphone (not included) to the MIC input port (refer to Figure 3). Adjust the microphone volume using the "MIC-VOL" knob. You can sing along to music playing from any source (Bluetooth, AUX, USB, TF Card, FM Radio).
Volume Control and Track Navigation
- Volume Up: Press and hold the "Next/Volume +" button.
- Volume Down: Press and hold the "Previous/Volume -" button.
- Next Track/Station: Short press the "Next/Volume +" button.
- Previous Track/Station: Short press the "Previous/Volume -" button.
- Play/Pause: Short press the "Play/Pause" button.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker's exterior. Do not use abrasive cleaners or solvents.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Water Resistance: This speaker is NOT waterproof. Avoid exposing it to water or excessive moisture.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Battery is low or depleted. | Charge the speaker using the provided charging cable. |
| Cannot pair with Bluetooth device. | Bluetooth is not enabled on your device; speaker is not in pairing mode; device is out of range. | Ensure Bluetooth is on and the speaker is in pairing mode. Move device closer to the speaker (within 33 feet). |
| No sound from speaker. | Volume is too low; incorrect mode selected; audio cable not fully connected. | Increase speaker and device volume. Ensure correct mode (Bluetooth, AUX, etc.) is selected. Check cable connections. |
| FM Radio reception is poor. | Weak signal; environmental interference. | Try repositioning the speaker. Perform an auto-scan for stations again. |
Specifications
| Feature | Detail |
|---|---|
| Model | BX311R |
| Brand | 2BOOM |
| Subwoofer Diameter | 4 Inches |
| Connectivity Technology | Bluetooth, USB, Wireless |
| Maximum Bluetooth Range | 33 Feet (10 meters) |
| Audio Output Mode | Stereo |
| Power Source | Battery Powered |
| Material Type | Plastic |
| Color | Red |
| Item Weight | 1.65 Pounds (approx. 748.43 g) |
| Product Dimensions (L x W x H) | 25.4 x 16.51 x 15.24 cm |
| Special Features | FM Radio, Microphone Input, USB/TF Card Playback |
Warranty and Support
The 2BOOM Twister Speaker comes with an UNLIMITED 2BOOM warranty when bought from Tech Direct Worldwide. For warranty claims, technical support, or any inquiries regarding your product, please contact the retailer or manufacturer directly.
Please retain your proof of purchase for warranty purposes.

