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Lenovo 11RTZ9ARUS Bluetooth Sound Bar Speaker — main product image
Lenovo 11RTZ9ARUS Bluetooth Sound Bar Speaker
Lenovo 11RTZ9ARUS Bluetooth Sound Bar Speaker
Lenovo 11RTZ9ARUS Bluetooth Sound Bar Speaker
Lenovo 11RTZ9ARUS Bluetooth Sound Bar Speaker
Lenovo 11RTZ9ARUS Bluetooth Sound Bar Speaker
Lenovo

Lenovo 11RTZ9ARUS Bluetooth Sound Bar Speaker

00W

40W of DSP-processed audio with beamforming mics and echo cancellation turns any desk or conference room into a clear, connected collaboration space.

$135.50*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

The Lenovo ThinkSmart Bar (model 11RTZ9ARUS) is a 31.5-inch horizontal sound bar built specifically for the collaboration and communication use case — it is not primarily a music speaker. Its 40W RMS amplification covers the 250 Hz to 20 kHz frequency range, which is adequate for voice reproduction and video conference audio but does not attempt to extend into sub-bass territory. The real engineering investment in this device is the microphone system: integrated beamforming microphones with DSP-based noise cancellation and echo cancellation address the exact problems that make shared workspace calls frustrating — background keyboard noise, room reverb, and audio feedback. Connectivity options include Bluetooth, USB, and USB Type-C, giving it flexibility across laptop generations and conference room AV setups.

In practice, this bar solves a specific and common problem: upgrading the audio quality of a desk or small meeting room setup without the complexity of a full AV installation. Positioning it beneath a monitor puts both the speakers and the microphones at an appropriate height and distance for a seated user. The wall-mount option extends its utility to dedicated conference room deployments where desk space is shared or absent. For anyone who spends significant time on video calls and finds their current audio setup leading to complaints from colleagues about echo or clarity, the ThinkSmart Bar's integrated microphone and DSP processing combination is the practical upgrade — the speaker quality is secondary but meaningfully better than laptop audio.

Key Features

Item Package Dimension: 41.50L x 7.00W x 5.80H inches

Item Package Weight - 4.19 Pounds

Item Package Quantity - 1

Product Type - SPEAKERS

11RTZ9ARUS

Specifications

RMS Output Power
40W
Frequency Response
250 Hz – 20 kHz
Connectivity
Bluetooth, USB, USB Type-C
Microphones
Integrated Beamforming with Noise Cancellation
Audio Processing
Digital Signal Processing (DSP), Echo Cancellation
Mounting
Stand Mountable, Wall Mountable
Dimensions
2.2" H x 31.5" W x 3.5" D
Package Weight
4.19 lbs

Pros & Cons

👍 Pros

  • 40W RMS output delivers room-filling volume that clearly outperforms any laptop, monitor, or compact desktop speaker for meetings and media playback
  • 40W RMS output at 250 Hz to 20 kHz delivers noticeably fuller audio reproduction than built-in laptop speakers, making remote meetings and multimedia playback sound more natural and less fatiguing.
  • Beamforming microphones with integrated DSP noise cancellation pick up speech clearly in real office environments, reducing the echo and ambient noise that makes laptop microphones frustrating for call participants.
  • Integrated beamforming microphones with hardware noise cancellation pick up voice clearly while reducing keyboard noise, room echo, and background ambient sound on calls
  • Three connectivity options (Bluetooth, USB, USB-C) cover the full range of modern laptops, desktops, and mobile devices without requiring additional adapters
  • USB and USB Type-C connectivity provide broad compatibility with modern laptops and desktop workstations without requiring a separate Bluetooth pairing sequence for every session.
  • The 31.5-inch width fits cleanly beneath a widescreen or ultrawide monitor, using the desk footprint that would otherwise be empty in front of the display.
  • Digital Signal Processing with echo cancellation prevents speaker output from feeding back into the microphone — calls remain clear even at high volume
  • Wall-mountable and stand-mountable design provides flexible permanent installation options for dedicated conference rooms or fixed home office setups
  • Echo cancellation at the hardware DSP level remains effective even when your own speakers are playing back audio — a scenario that trips up software-only echo cancellation in busy conference calls.

👎 Cons

  • 250Hz low-frequency cutoff limits bass extension — music playback lacks the low-end depth and rumble that a consumer soundbar or subwoofer-equipped system would deliver
  • The 250 Hz low-frequency cutoff means bass extension is limited — music playback and video content with low-frequency effects will sound thin compared to a sound bar with a dedicated subwoofer channel.
  • The bar's 31.5-inch physical width requires a desk with sufficient horizontal clearance; on smaller desks or single-monitor setups, it may feel disproportionately large relative to the display.
  • At 31.5 inches wide and 4.19 lbs, this soundbar is sized for a conference table or large display installation — it dominates a typical home office desk
  • The ThinkSmart platform is optimized for Microsoft Teams and Zoom enterprise deployments; some advanced management and configuration features require Lenovo's ecosystem software
  • Bluetooth audio for music streaming and USB audio for conferencing cannot be used simultaneously on most configurations, requiring manual source switching when alternating between tasks.
  • At 4.19 pounds and 31.5 inches, the bar is not practically portable — it is a desk-resident device, not something you pack for travel or move between rooms frequently.
  • No optical audio input means users with TVs or AV receivers that rely on optical (Toslink) output cannot connect the ThinkSmart Bar directly
  • At this size and weight, physical placement and cable management require deliberate planning — this is not a grab-and-go desktop audio solution
  • The 250 Hz to 20 kHz frequency response omits sub-bass entirely, which limits the bar's credibility as a music listening device for genres where low-end character matters.

Frequently Asked Questions

The ThinkSmart Bar supports three connection types: Bluetooth for wireless pairing with laptops, phones, and tablets; USB for plug-and-play wired connection to computers; and USB-C for newer laptops and devices with USB-C audio output. This makes it broadly compatible with Windows, Mac, and mobile devices without requiring driver installation in most cases.
Both options are available. The bar supports Bluetooth for wireless audio streaming and also connects via USB or USB Type-C for wired use. The USB connection also enables the integrated microphones and DSP features, which is the recommended setup for video conferencing.
The bar is designed as a USB audio device and should be recognized as a standard audio output and input by Windows and macOS — no separate driver installation is required for basic functionality. Collaboration platforms like Zoom and Teams will detect it as a microphone and speaker device automatically.
It works well in both settings, though it's sized for a conference room or a large desk setup. At 31.5 inches wide, it's better suited as a permanent installation — mounted below a display or centered on a conference table — than as a casual desk speaker. Home office users who spend hours daily on video calls will genuinely benefit from the beamforming microphones and echo cancellation, which solve laptop microphone limitations directly.
Noticeably better for the person on the other end of your calls. Laptop microphones pick up keyboard noise, fan hum, and room echo relatively indiscriminately. The ThinkSmart Bar's integrated beamforming microphones focus on voice pickup from the direction of the speaker while the noise cancellation and echo cancellation processing suppress background sound. The difference is most apparent in open-plan spaces and rooms with hard surfaces that create reverberation.
The integrated beamforming mics use directional processing to focus on voice sources in front of the bar while suppressing ambient noise from the sides and rear. Combined with the onboard DSP echo cancellation, participants on the far end hear your voice clearly even in a reflective office environment — a significant improvement over a single-capsule laptop microphone.
Yes — the bar supports both stand mounting and wall mounting. The product listing indicates wall-mountable capability, but specific mounting hardware requirements should be confirmed against the included accessory contents, as the bundle composition for this model may vary.
Yes — the ThinkSmart Bar supports both wall-mounting and stand-mounting configurations, making it suitable for permanent conference room AV installations. Wall-mounting requires appropriate hardware for your wall type; the product is designed with this use case in mind and is compatible with standard AV mounting approaches.
The 40W RMS output and 250Hz–20kHz frequency response deliver clean, clear audio for music and video. It performs noticeably better than any laptop or monitor speaker for media playback. The 250Hz low-frequency cutoff does mean that bass-heavy music lacks the low-end depth of a dedicated consumer soundbar with a wider frequency range — but for spoken content, podcasts, video calls, and general music listening, the audio quality is strong.
At 40W RMS with a 250 Hz to 20 kHz frequency response, the bar is sized for small-to-medium conference rooms and personal workstations — not open-plan spaces where ambient noise and listening distance would require significantly more output and lower-frequency extension.

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