Onn Soundbar Manual: A Comprehensive Guide
Welcome! This comprehensive guide details setup, operation, and troubleshooting for your Onn soundbar, encompassing models ONB18SB, S2016, and 100043839.
Congratulations on selecting an Onn soundbar to enhance your audio experience! This device, available in models like the ONB18SB 37in Bluetooth Soundbar and the S2016 2.0 Mini Soundbar, is designed to deliver immersive sound for your television, movies, music, and more. Manufactured by Shenzhen Junlan Electronic and Shenzhen 3nod Digital Technology, Onn soundbars represent a commitment to quality and affordability, backed by Walmart’s trusted brand.
This manual serves as your primary resource for understanding all aspects of your new soundbar, from initial setup and connection options – including Bluetooth pairing (identified as Onn 36 5.1 Soundbar) – to customizing sound settings and resolving common issues. We aim to provide a seamless and enjoyable user experience, ensuring you quickly benefit from superior audio performance.
Unboxing and Package Contents
Upon receiving your Onn soundbar (models ONB18SB, S2016, or 100043839), carefully inspect the packaging for any signs of damage during transit. Once confirmed secure, open the box and verify the inclusion of all listed components. Typically, your package should contain the soundbar unit itself, a wireless subwoofer measuring 200mm(W) x 300mm(D) x 300mm(H), and potentially satellite speakers with dimensions of 80mm(W) x 65mm(D) x 240mm(H), depending on the model.
Additionally, you should find a remote control for convenient operation, a power adapter, and this user manual. Retain all original packaging and documentation for warranty purposes and potential future transport. If any items are missing or damaged, immediately contact Walmart customer support for assistance and replacement options.
Safety Precautions
To ensure safe operation of your Onn soundbar (models ONB18SB, S2016, 100043839), please adhere to the following precautions. Avoid placing the soundbar in direct sunlight or near heat sources. Do not expose the device to excessive moisture or liquids. Ensure adequate ventilation around the unit to prevent overheating. Never attempt to disassemble or repair the soundbar yourself; doing so will void the warranty.
Always use the provided power adapter and ensure it is properly grounded. Keep the soundbar and its accessories out of reach of young children. Disconnect the power cord during lightning storms or prolonged periods of non-use. If you notice any unusual smells or smoke, immediately unplug the device and contact customer support.

Setting Up Your Onn Soundbar

Let’s begin! This section guides you through connecting your Onn soundbar (models ONB18SB, S2016, 100043839) for optimal audio enjoyment.
Connecting to Power
Powering On: Before enjoying your Onn soundbar (models ONB18SB, S2016, 100043839), ensure a stable power connection. Locate the DC IN port on the rear panel of the soundbar and the subwoofer. Connect the provided power adapter to the soundbar’s DC IN port, then plug the adapter into a working electrical outlet.
For the wireless subwoofer, connect the included power adapter to its DC IN port and plug it into a separate outlet. Verify both the soundbar and subwoofer receive power – indicator lights should illuminate. If no lights appear, double-check the power connections and the outlet functionality. Proper power connection is crucial for optimal performance and prevents unexpected interruptions during use.

Connecting via Bluetooth
Wireless Freedom: To connect your Onn soundbar (ONB18SB, S2016, 100043839) via Bluetooth, first, ensure the soundbar is powered on. Press the “Source” button on the soundbar or the Bluetooth key on the remote control to enter Bluetooth pairing mode. The blue LED indicator will begin flashing, signifying it’s discoverable.
On your smartphone, tablet, or other Bluetooth-enabled device, navigate to the Bluetooth settings and search for available devices. Select “Onn 36 5.1 Soundbar” from the list. Once selected, the blue LED on the soundbar will become solid, confirming a successful connection. Enjoy wireless audio streaming with a stable Bluetooth connection for an immersive listening experience.
Connecting via HDMI ARC
Enhanced Audio Experience: Utilize HDMI ARC (Audio Return Channel) for a simplified connection and superior audio quality with your Onn soundbar (models ONB18SB, S2016, 100043839). Connect an HDMI cable from the HDMI ARC port on your TV to the HDMI ARC port on the soundbar.
Ensure your TV’s HDMI-CEC (Consumer Electronics Control) setting is enabled in the TV’s audio settings. This allows the TV to automatically switch to the soundbar as the audio output. Select the appropriate HDMI ARC input on your soundbar using the “Source” button. Enjoy immersive, high-fidelity sound directly from your TV content, controlled seamlessly with your TV remote.
Connecting via Optical Cable
Digital Audio Connection: For a reliable digital audio connection, use an optical cable to connect your Onn soundbar (models ONB18SB, S2016, 100043839) to your TV. Plug one end of the optical cable into the “Optical Out” port on your TV and the other end into the “Optical In” port on the soundbar.
Using the soundbar’s remote or control panel, select the “Optical” input source. Verify your TV’s audio settings are configured to output audio via the optical port. This method delivers clear, digital sound, bypassing potential analog interference. Ensure the protective dust covers are removed from the optical cable ends before connecting for optimal performance.
Connecting via AUX Input
Analog Audio Connection: Utilize the AUX input for a straightforward connection to devices lacking optical or HDMI ARC capabilities. Connect one end of a standard 3.5mm audio cable to the headphone or audio-out port on your TV, computer, or other audio source. Plug the other end into the “AUX In” port on your Onn soundbar (models ONB18SB, S2016, 100043839).
Select the “AUX” input source on your soundbar using the remote or control panel. Adjust the volume on both your source device and the soundbar to achieve your desired listening level. While convenient, AUX connections may be more susceptible to interference than digital connections. Ensure a secure connection for optimal audio quality.

Understanding the Controls
Mastering Operation: This section details the functions of both the soundbar’s control panel and the included remote, ensuring seamless operation and customization.

Soundbar Control Panel Overview

Locating Essential Functions: The Onn soundbar’s control panel, typically found on the top or front of the unit, provides direct access to core functionalities. Key buttons include the power button for turning the soundbar on and off, and a source button to cycle through available input modes – Bluetooth, HDMI ARC, Optical, and AUX.
Input Selection & Pairing: Pressing the source button allows you to select your desired audio source. For Bluetooth connectivity, specifically, the manual indicates pressing the Bluetooth key on the remote or the source button on the soundbar itself initiates pairing mode. The blue LED indicator confirms Bluetooth readiness, identifying the soundbar as “Onn 36 5.1 Soundbar”. Volume control buttons (+/-) are also present for immediate audio level adjustments. These physical controls offer a convenient alternative to the remote control for basic operations.
Remote Control Functions
Comprehensive Control at Your Fingertips: The Onn soundbar remote control expands upon the soundbar’s onboard controls, offering a wider range of functionalities. Beyond power and volume adjustments, the remote facilitates seamless source selection, mirroring the soundbar’s source button. Crucially, a dedicated Bluetooth key initiates pairing mode, allowing connection to smartphones, tablets, or other Bluetooth-enabled devices.
Advanced Features & Navigation: The remote likely includes buttons for navigating sound modes – Movie, Music, and Dialogue – to optimize audio for different content types. While specific details aren’t provided, expect controls for equalizer settings and potentially subwoofer level adjustment. The remote’s functionality is essential for fully utilizing the soundbar’s capabilities, providing convenient access to all features without needing to physically interact with the soundbar itself.

Sound Settings and Customization
Personalize Your Audio: Explore adjustable volume levels, equalizer presets, and distinct sound modes—Movie, Music, and Dialogue—to tailor the Onn soundbar’s output.
Adjusting Volume Levels
Controlling Your Sound: Adjusting the volume on your Onn soundbar is straightforward, offering multiple methods for convenient control. You can directly manipulate the volume using the dedicated control panel buttons located on the soundbar itself. Alternatively, utilize the volume controls present on the included remote control for effortless adjustments from a distance.
Precise Control: Both the soundbar’s control panel and the remote control provide incremental volume adjustments, allowing you to fine-tune the audio to your precise preference. Be mindful of the current input source, as some sources may have their own volume controls that interact with the soundbar’s settings. Experiment to find the optimal balance between the source volume and the soundbar’s output for a truly immersive listening experience.
Equalizer Settings
Tailoring Your Audio: While specific details regarding equalizer settings aren’t explicitly detailed in available documentation, understanding audio customization is key. Many soundbars, including Onn models, offer preset equalizer modes designed to enhance different content types. These presets often include options like “Movie,” “Music,” and “Dialogue,” each optimizing the sound profile for its intended purpose.
Optimizing Sound Profiles: Explore these presets to discover which best suits your listening preferences and the content you’re enjoying. If your Onn soundbar features more advanced equalizer controls, you may be able to manually adjust specific frequency bands to further refine the sound. Experiment with these settings to achieve a personalized audio experience that perfectly complements your entertainment.
Sound Modes (Movie, Music, Dialogue)
Immersive Audio Experiences: Your Onn soundbar likely features pre-programmed sound modes designed to optimize audio for various content types. The “Movie” mode typically enhances bass and dynamic range, creating a more cinematic experience with impactful sound effects. “Music” mode prioritizes clarity and balance, delivering a faithful reproduction of your favorite tracks.
Clear Voice Enhancement: The “Dialogue” mode focuses on amplifying vocal frequencies, making conversations and speech clearer – ideal for movies with quiet dialogue or news broadcasts. Switching between these modes allows you to instantly adapt the sound to the content you’re consuming, ensuring optimal listening enjoyment. Experiment to find the perfect setting for each occasion!

Troubleshooting Common Issues
Resolve Audio Problems: This section provides solutions for common issues like no sound, Bluetooth pairing failures, remote control malfunctions, and subwoofer synchronization problems.
No Sound Output
Addressing Silence: If your Onn soundbar isn’t producing sound, begin by verifying the power connections to both the soundbar and the subwoofer are secure. Confirm the volume level on both the soundbar itself and your connected device (TV, phone, etc.) is appropriately adjusted and not muted.
Next, cycle through the input sources (HDMI ARC, Optical, AUX, Bluetooth) using the “Source” button on the soundbar or remote to ensure the correct input is selected. Check the cable connections – ensure HDMI or optical cables are firmly plugged into the correct ports on both the soundbar and your TV.
For Bluetooth connections, re-pair the soundbar with your device. If using HDMI ARC, confirm ARC is enabled in your TV’s audio settings. Finally, test with a different audio source to isolate whether the issue lies with the soundbar or the original source device.
Bluetooth Pairing Problems
Troubleshooting Connections: Experiencing difficulty pairing your device with the Onn soundbar via Bluetooth? First, ensure Bluetooth is enabled on your smartphone, tablet, or other sending device. Place the device within close proximity – ideally within 10 feet – of the soundbar during the pairing process.
Activate Bluetooth pairing mode on the soundbar by pressing the Bluetooth key on the remote control; the blue LED indicator will signal pairing mode (Onn 36 5.1 Soundbar is the Bluetooth ID). If previously paired devices appear, try “forgetting” or “unpairing” them from your device’s Bluetooth settings before attempting a fresh connection.
Restarting both the soundbar and your sending device can often resolve pairing conflicts. Confirm no other devices are actively connected to the soundbar, as some models support only one Bluetooth connection at a time.
Remote Control Not Working
Addressing Remote Issues: If your Onn soundbar’s remote control isn’t responding, begin with the simplest checks. Ensure the batteries are fresh and correctly installed, observing proper polarity. Aim the remote directly at the soundbar’s front panel, avoiding obstructions.
Try resetting the remote by removing and reinserting the batteries. If the issue persists, attempt to pair the remote with the soundbar again – consult the main manual for specific pairing instructions, as procedures vary by model.
Check for interference from other electronic devices or strong lighting sources, which can sometimes disrupt the remote’s signal. A thorough visual inspection for physical damage to the remote is also recommended.
Subwoofer Synchronization Issues
Resolving Subwoofer Problems: If your Onn soundbar’s subwoofer isn’t synchronizing, first ensure it’s powered on and within range (typically 30 feet) of the soundbar. Check the power cable connection to both the subwoofer and the soundbar itself.
Many Onn models require a manual pairing process. Locate the “Subwoofer Pairing” button (often on the back of the subwoofer) and press/hold it until the indicator light flashes. Simultaneously, initiate pairing mode on the soundbar through its settings menu or by pressing a designated button.
Interference from other wireless devices can sometimes cause synchronization problems; try moving the subwoofer away from potential sources of interference.

Technical Specifications
Detailed Dimensions: The subwoofer measures 200mm(W) x 300mm(D) x 300mm(H), while satellites are 80mm(W) x 65mm(D) x 240mm(H).
Model Numbers (ONB18SB, S2016, 100043839)
Identifying Your Onn Soundbar: This manual covers several Onn soundbar models, each designed to enhance your audio experience. Key model numbers include ONB18SB, a 37-inch Bluetooth soundbar manufactured by Shenzhen Junlan Electronic. Another supported model is S2016, a 2.0 mini soundbar from Shenzhen 3nod Digital Technology. Finally, the 5.1 CH Wireless Sound Bar, identified by the number 100043839, is also included in this guide.
Important Note: While the core functionality remains consistent, slight variations may exist between models. Always refer to the specific instructions relevant to your particular Onn soundbar model for optimal performance and feature utilization. Knowing your model number ensures you access the correct support resources and troubleshooting steps.
Dimensions (Soundbar, Subwoofer, Satellites)
Physical Specifications: Understanding the dimensions of your Onn soundbar components is crucial for placement and ensuring compatibility with your entertainment setup. The subwoofer, part of the 5.1 CH Wireless Sound Bar (100043839), measures 200mm (Width) x 300mm (Depth) x 300mm (Height).
Satellite Speaker Size: The satellite speakers accompanying this model are considerably smaller, with dimensions of 80mm (W) x 65mm (D) x 240mm (H). Please note that dimensional information for the ONB18SB and S2016 models isn’t explicitly provided in the available documentation; however, these are generally compact units designed for versatile placement. Accurate dimensions aid in planning your audio system layout.