1. Introduction
Thank you for purchasing the ZEBRONICS Sound Feast 51 Wireless Bluetooth Speaker. This manual provides detailed instructions on how to set up, operate, and maintain your speaker to ensure optimal performance and longevity. The Sound Feast 51 is a 14W portable speaker featuring TWS function, media/volume control, and multiple connectivity options.
2. Product Overview
2.1 Key Features
- Wireless Bluetooth Connectivity (BT v5.0)
- 14W Output with Dual 57mm Full Range Drivers for Deep Bass
- True Wireless Stereo (TWS) Function for connecting two speakers
- Supports USB & Micro SD Card Playback
- Built-in FM Radio
- AUX Input for wired connections
- Integrated Media / Volume Control buttons
- Built-in Rechargeable Battery for extended playback
- Call Function for hands-free calls
- Voice Assistant Support (Google Assistant, Apple Siri)
- Rugged Finish and Handy Strap for portability
- Integrated Mobile Holder
2.2 Package Contents
Upon unboxing, please ensure all the following items are present:
- ZEBRONICS Sound Feast 51 Speaker - 1 unit
- Charging Cable - 1 unit
- AUX Cable - 1 unit
- User Manual - 1 unit
2.3 Product Diagram and Controls
Familiarize yourself with the speaker's layout and controls:

Figure 1: Front view of the ZEBRONICS Sound Feast 51 speaker, showcasing its rugged design and central control panel.

Figure 2: Rear view of the speaker, highlighting the multi-connectivity ports including USB, Micro SD, and AUX input.

Figure 3: A close-up of the speaker emphasizing its deep bass capabilities and dual 57mm full-range drivers for powerful audio.

Figure 4: The speaker features a convenient integrated mobile holder, allowing you to place your smartphone while enjoying audio.
The control panel typically includes buttons for Power, Mode (M), Volume Down/Previous Track (-), Volume Up/Next Track (+), and Play/Pause/Call Answer (▶).
3. Setup
3.1 Initial Charging
Before first use, fully charge the speaker. Connect the provided charging cable to the speaker's charging port and the other end to a USB power adapter (not included) or a computer's USB port. The charging indicator will illuminate during charging and turn off once fully charged.
3.2 Powering On/Off
- To power on: Press and hold the Power button for a few seconds until you hear an audible prompt.
- To power off: Press and hold the Power button again until the speaker shuts down.
4. Operating Instructions
4.1 Bluetooth Mode
- Turn on the speaker. It will automatically enter Bluetooth pairing mode, indicated by a flashing LED.
- Enable Bluetooth on your smartphone or other device.
- Search for "ZEB-SOUND FEAST 51" in the list of available devices and select it to pair.
- Once paired, the LED indicator will stop flashing, and you will hear a confirmation tone. You can now play audio wirelessly.

Figure 5: The portable design of the speaker makes it ideal for outdoor use, allowing you to enjoy music anywhere.
4.2 True Wireless Stereo (TWS) Function
The TWS function allows you to connect two Sound Feast 51 speakers together for a stereo audio experience.
- Ensure both speakers are powered on and in Bluetooth mode, but not connected to any device.
- On one of the speakers (this will be the primary speaker), press and hold the Play/Pause button (▶) for a few seconds until you hear a TWS pairing prompt.
- The two speakers will automatically connect to each other. Once connected, the primary speaker's LED will flash, and the secondary speaker's LED will be solid.
- Now, connect your device to the primary speaker via Bluetooth as described in Section 4.1. Audio will play through both speakers in stereo.

Figure 6: Two speakers positioned to illustrate the True Wireless Stereo (TWS) function, providing immersive sound.
4.3 USB / Micro SD Card Mode
Insert a USB drive or Micro SD card (with MP3 audio files) into the respective port on the speaker. The speaker will automatically detect the storage device and begin playing music. Use the Mode (M) button to switch between input sources if needed.
4.4 AUX Mode
Connect one end of the provided AUX cable to the speaker's AUX input port and the other end to the audio output jack of your device (e.g., smartphone, laptop). The speaker will automatically switch to AUX mode. If not, press the Mode (M) button to select AUX input.
4.5 FM Radio Mode
Press the Mode (M) button to switch to FM Radio mode. To auto-scan and save available FM channels, press and hold the Play/Pause button (▶). Use the Volume Up (+) and Volume Down (-) buttons to navigate between saved channels.
4.6 Call Function
- Answering a Call: When a call comes in while connected via Bluetooth, press the Play/Pause button (▶) once to answer.
- Ending a Call: During a call, press the Play/Pause button (▶) once to end the call.
- Rejecting a Call: Press and hold the Play/Pause button (▶) for a few seconds to reject an incoming call.
- Redialing Last Number: In Bluetooth mode, double-press the Play/Pause button (▶) to redial the last dialed number.
4.7 Voice Assistant Support
When connected via Bluetooth, press the Voice Assistant button (if available, or typically a long press on Play/Pause or Mode button, refer to specific product button layout) to activate your device's voice assistant (e.g., Google Assistant, Apple Siri). You can then issue commands through the speaker's microphone.

Figure 7: The speaker supports voice assistants like Google Assistant and Apple Siri, allowing for hands-free control.
5. Maintenance
5.1 Cleaning
Wipe the speaker with a soft, dry cloth. Do not use harsh chemicals, cleaning solvents, or strong detergents. Avoid getting moisture into any openings.
5.2 Storage
When not in use for extended periods, store the speaker in a cool, dry place away from direct sunlight and extreme temperatures. It is recommended to charge the battery at least once every three months to maintain its lifespan.
5.3 Battery Care
The speaker has a built-in rechargeable battery. To maximize battery life:
- Avoid fully discharging the battery frequently.
- Do not expose the speaker to extreme heat or cold.
- Charge the speaker using only the provided cable or a compatible charger.

Figure 8: The speaker offers extended playback time, making it suitable for long trips and outdoor adventures.
6. Troubleshooting
If you encounter issues with your ZEBRONICS Sound Feast 51 speaker, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Battery is drained. | Charge the speaker fully. |
| No sound. | Volume too low; incorrect mode; device not connected. | Increase volume on speaker and device; ensure correct input mode (BT, AUX, USB, SD); re-pair Bluetooth device. |
| Bluetooth pairing fails. | Speaker not in pairing mode; device too far; interference. | Ensure speaker is in pairing mode; move device closer; turn off other Bluetooth devices. |
| TWS connection fails. | Speakers already paired to a device; incorrect pairing procedure. | Ensure both speakers are disconnected from other devices; follow TWS pairing steps carefully. |
| Poor FM reception. | Weak signal. | Relocate the speaker to an area with better signal; extend the antenna if available. |
If the problem persists after trying these solutions, please contact ZEBRONICS customer support.
7. Specifications
Detailed technical specifications for the ZEBRONICS Sound Feast 51 speaker:
| Feature | Detail |
|---|---|
| Model Name | ZEB- SOUND FEAST 51( Black) |
| Mounting Type | Tabletop Mount |
| Speaker Type | Bookshelf |
| Special Feature | Radio |
| Recommended Uses | Tablets For Music Players, For Smartphones or Tablets |
| Compatible Devices | Tablet, Smartphone |
| Colour | black |
| Product Dimensions | 12.2D x 26.2W x 12.4H Centimeters |
| Item Weight | 710 Grams |
| Is Waterproof | TRUE |
| Control Method | Remote (Note: Physical buttons also available) |
| Wireless Communication Technology | Bluetooth |
| Power Source | Battery Powered |
| Signal-to-Noise Ratio | 80 dB |
| Tweeter Diameter | 1 Inches |
| Audio Driver Type | Dynamic Driver |
| Subwoofer Connectivity Technology | Wireless |
| Connectivity Protocol | Bluetooth |
| Speaker amplification type | Active |
| Speaker connectivity | Wireless |
| Wattage | 14 Watts |
| Frequency Response | 20 KHz |
| Audio Output Mode | Stereo |
8. Warranty and Support
8.1 Warranty Information
The ZEBRONICS Sound Feast 51 speaker comes with a 1 Year Warranty from the date of purchase. This warranty covers manufacturing defects and workmanship. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
Please retain your purchase receipt as proof of purchase for warranty claims.
8.2 Customer Support
For any technical assistance, warranty claims, or product-related inquiries, please contact ZEBRONICS customer support. Refer to the official ZEBRONICS website or your product packaging for the most up-to-date contact information.
You can also visit the official ZEBRONICS store on Amazon for more information: ZEBRONICS Store