Introduction
The Fender x Teufel ROCKSTER CROSS is a robust and portable wireless Bluetooth speaker designed for powerful stereo sound. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device to ensure optimal performance and longevity.

Figure 1: Front view of the Fender x Teufel ROCKSTER CROSS speaker with its attached guitar strap.
What's in the Box
Verify that all items are present in the packaging:
- Fender x Teufel ROCKSTER CROSS Speaker
- Fender Guitar Strap
- External Power Supply with NEMA-1 plug
- 1 × Fender Guitar Pick

Figure 2: All included components of the ROCKSTER CROSS package.
Setup
1. Initial Charging
Before first use, fully charge the speaker using the provided external power supply. The charging port is located on the rear panel, protected by a rubber flap.

Figure 3: Rear panel ports including power input and USB-A output.
2. Bluetooth Pairing
- Power on the ROCKSTER CROSS speaker by pressing the power button.
- The Bluetooth indicator light will flash, indicating it's in pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for "ROCKSTER CROSS" in the list of available devices.
- Select "ROCKSTER CROSS" to connect. The indicator light will turn solid blue once connected.
3. Stereo Pairing (Two Units)
For an enhanced audio experience, two ROCKSTER CROSS speakers can be paired together for true wireless stereo sound.
- Ensure both ROCKSTER CROSS speakers are powered on and not connected to any other Bluetooth devices.
- On one speaker, press and hold the Bluetooth button until you hear a confirmation tone.
- Repeat the process on the second speaker.
- The speakers will automatically connect to each other. Once paired, connect your device to one of the speakers via Bluetooth as described above.

Figure 4: Two ROCKSTER CROSS speakers ready for stereo pairing.
Operating Instructions
Controls
The top panel of the speaker features intuitive control buttons for various functions:
- Power Button: Press to turn on/off.
- Bluetooth Button: Press to enter pairing mode; long press for stereo pairing.
- Volume Up/Down: Adjust audio volume.
- Play/Pause: Control media playback.
- Microphone Button: Activate voice assistant or answer/end calls.
Power Bank Functionality
The ROCKSTER CROSS features a built-in power bank. Connect your mobile device to the USB-A port on the rear panel (under the rubber flap) to charge it. This feature is useful for charging devices on the go.
Microphone and Call Functionality
The integrated microphone allows for hands-free calling. When a call comes in, press the microphone button to answer. Press again to end the call. Long press to activate your device's voice assistant.
Indoor/Outdoor Modes
The speaker may feature a mode button (often on the rear) to optimize sound for indoor or outdoor environments. Refer to the specific button layout on your device for activation.
Video 1: Official product video showcasing features and usage of the Fender x Teufel ROCKSTER CROSS Bluetooth Speaker.
Maintenance
Cleaning
To clean the speaker, use a soft, damp cloth. Avoid using abrasive cleaners or solvents, as these can damage the surface. Ensure all port covers are securely closed before cleaning if water is involved.
Water Resistance (IPX5)
The ROCKSTER CROSS is IPX5 water-resistant, meaning it can withstand splashes and light rain. It is not designed to be submerged in water. Always ensure the rubber flap covering the ports is securely closed to maintain water resistance.

Figure 5: Water resistance of the speaker.
Storage
Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, charge the battery to approximately 50% to preserve battery health.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Battery is depleted. | Connect the speaker to the power supply and charge it. |
| No sound from the speaker. | Volume is too low; device not paired; incorrect input source. | Increase volume on both speaker and device. Re-pair Bluetooth. Ensure correct input (Bluetooth/AUX) is selected. |
| Bluetooth connection is unstable. | Device is too far from speaker; interference. | Move device closer to the speaker. Avoid obstacles or other wireless devices. |
| Cannot charge external device via USB. | Speaker battery is too low; cable issue. | Ensure speaker has sufficient charge. Try a different USB cable. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | Fender x Teufel ROCKSTER CROSS |
| Model Number | 107001536 |
| Dimensions (D x W x H) | 5.1" x 15" x 6.3" |
| Weight | 8.83 pounds |
| Battery Life | Up to 16 hours |
| Water Resistance | IPX5 |
| Connectivity | Bluetooth 5.0 aptX, Auxiliary (3.5mm Jack) |
| Speaker Type | Portable Bluetooth Speaker with Subwoofer |
| Material | Matte, rubber, Plastic |
| Special Features | Built-in Microphone, Stereo Pairing, Built-in Powerbank, Shockproof |

Figure 6: Speaker dimensions relative to common objects.
Warranty and Support
The Fender x Teufel ROCKSTER CROSS comes with a limited warranty. For detailed warranty information, technical support, or to access the full user manual, please refer to the official documents:
You can also visit the official Teufel Audio US store on Amazon for more information and support: Teufel Audio US Store
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