Our founding team began as passionate audio-visual engineers. Seeing movie and music lovers turn away from high-end audio—deterred by complexity, outdated design, and high costs—we set out to change that.
Ourstone reinvents home theater with breakthrough acoustic engineering, modern design, and cost innovations, making cinema-grade sound accessible to all.
Started in Seattle and now trusted in 100+ regions, Ourstone is redefining home theater.
Feature highlights:Experience the ultimate home theater with Dolby Atmos technology, delivering immersive 3D audio precision and height localization. The SL4100 soundbar features Audio Auto-Recognition Optimization for enhanced dialogue and impactful bass, compact 2.1-channel design with powerful sound pressure, and advanced decoding for Blu-ray, streaming services, and HDMI-eARC support. FCC certification ensures compliance with electronic safety standards, providing reliable performance and market access.
Supplier highlights:This supplier mainly exports to the UAE, Nigeria, and Colombia, offering quality control services and providing full customization, design customization, and sample customization. Additionally, it holds product certifications with a customer satisfaction rate of 98.6%.
Positive retail outlook:The product’s high popularity in retail is underpinned by consistent top bestseller rankings and compelling profit margins.

2.1 channel Dolby Atmos
- Elevate your TV to Dolby Atmos Home Theater: Equipped with the more advanced Dolby Atmos technology compared to Dolby Digital,this cutting-edge audio technology is tailored for high-end customers. Dolby Atmos introduces object-based audio technology,enhancing the three-dimensionality and precision of sound, addressing the height localization deficiencies of Dolby Digital.Connect the TV, and once you start the SL4100, the immersive Dolby Atmos sound fills the entire room.
- Audio Auto-Recognition Optimization Technology: The SL4100’s audio algorithms combine advanced digital signal processing and machine learning technology to effectively separate and recognize different sounds, automatically optimizing the audio for various scenes. When there is dialogue, vocals are enhanced, and during dynamic scenes, Ultimea’s exclusive BassMX technology makes the bass more impactful, with adjustable bass levels to suit your preference.
- Breaking Size Limitations: The SL4100 is a rare 2.1-channel soundbar featuring Dolby Atmos. Ultimea uses a unique acoustic architecture to achieve a larger vibrating surface area, delivering more efficient sound vibrations. This perfectly integrates with Dolby Atmos, ensuring that even with its compact size, it provides powerful sound pressure levels and a wide soundstage.
- Advanced Dolby Atmos Decoding: Compatible with Blu-ray, streaming services on TV (Netflix, Prime Video), and set-top boxes. The SL4100 supports full decoding and playback of Dolby Atmos content and is backward compatible with Dolby Digital and other Dolby audio formats. As Dolby Atmos is becoming the future trend in audio technology, you can enjoy the auditory feast of Dolby Atmos at the price of a 2.1-channel Dolby Digital soundbar.
- Elevate your TV to Dolby Atmos – SL4100 sound bar for smart TV enhances TV or PC audio with dual speakers and a subwoofer, more transparent dialogue and deeper bass.
- Drive into an Immersive Sound – The Dolby Atmos sound bar provides a multi-dimensional sound experience with a virtual height and surround element, dramatically filling the room with fantastic sound.
- Breaking Size Limitation – With a length of 15.7″ and a height of just 1.5″, the sound bar can be perfectly invisible under your TV.
- Bass MAX Technology – OURSTONE soundbar exclusive BassMX technology enriches the low frequencies, enabling adjustable bass for a rumble, pulse-pounding bass.
- Top-level Decoding Tech: Compatible with Blu-ray, streaming (Netflix, Prime Video) on TVs, and set-top boxes. Supports full decoding/playback if the content is Dolby Atmos-enabled.
- Easy Setup – Just plug the included HDMI cable into the HDMI eARC port on your TV to enjoy audio that’s always in sync instantly
Product information
| Attribute | Vaule |
|---|---|
| Model Name | SL4100 |
| Speaker Type | 2.1 Soundbar with Dolby Atmos |
| Special Feature | BassMAX Technology, Dolby Atmos Advanced Decoding Technology, Dolby Atmos Surround Sound, Loud and Clear with Powerful Bass, Ultra-Slim and Low-Profile Design |
| Recommended Uses For Product | For Computers, For DVD Players, For Gaming Consoles, For Music Players, For Smartphones or Tablets, For Surround Sound Systems, For Televisions |
| Compatible Devices | Desktop / Laptop, Gaming Console, Projector, Smartphone, Television |
| Unit Count | 1.0 Count |
| Surround Sound Channel Configuration | 2.1 |
| Color | Black |
| Included Components | 1x 3.5mm to 3.5mm Audio Cable, 1x HDMI-eARC Cable & HDMI Adapter, 1x Optical Cable, 1x Soundbar with Subwoofer, 4x Wall Mount Kit |
| Product Dimensions | 15.75″D x 6.1″W x 10.62″H |
| Item Weight | 7.05 Pounds |
| Is Waterproof | False |
| Warranty Type | Limited |
| Number of Items | 1 |
| Control Method | Remote |
| Wireless Communication Technology | Bluetooth 5.3 |
| Speaker Size | 5.25 Inches |
| Power Source | Corded Electric |
| Signal-to-Noise Ratio | 87 dB |
| Woofer Diameter | 5.25 Inches |
| Water Resistance Level | Not Water Resistant |
| Customer Package Type | FFP |
| Audio Driver Type | Dynamic Driver |
| Audio Driver Size | 5.25 Inches |
| Subwoofer Connectivity Technology | Wired |
| Number Of Circuits | 3 |
| Number of Power Levels | 3 |
| Style | Soundbar with Dolby Atmos |
| Manufacturer | OURSTONE |
| Shape | rectangular prism |
| Item model number | SL4100 |
What's in the box
· 1x Soundbar with Subwoofer
· 1x HDMI-eARC Cable & HDMI Adapter
· 1x Optical Cable
· 1x 3.5mm to 3.5mm Audio Cable
· 4x Wall Mount Kit