Dell Pro Plus Wireless Speakerphone - SL525

Our wireless speakerphone combines portability, versatile connectivity, and AI-based dual-directional noise-canceling microphones to deliver clear, distraction-free audio in any setting - whether at home, in a shared workspace, or on the go.

Ports and Connectors

USB-C

Controls

Microphone Mute/Unmute

MS Teams

End

Answer

Volume Down

Volume Up

Software Certification

Microsoft Teams

Zoom

Intelligent Audio

Perfectly capturing voices with precision, the speakerphone delivers consistent, crystal-clear sound quality up to 2.5 meters between you and the device. Ideal for use in huddle spaces, home offices, or small conference rooms.

Discover the Difference with AI-based Noise Cancellation

Our AI-based noise cancellation microphone technology delivers remarkable clarity by filtering out background noise and enhancing human voices on both ends of the call. These audio samples highlight the performance difference, allowing you to hear how our speakerphone stands out in providing clear, distraction-free audio.


Experience the clarity that sets us apart. Our speakerphone doesn't just compete – it leads.

Hear a sample of competitor's audio¹.

Hear a sample of our Dell speakerphone².

Robust Audio Performance

Versatile Connectivity

Connectivity options

Enjoy Bluetooth® 5.3 with Multi-point connectivity, wireless connectivity through Dell audio receiver for added reliability, or the built-in wired USB-C connection for a direct and seamless experience.

Universal device compatibility

Integrated USB-C connection with an in-box USB-A adapter ensures seamless compatibility across devices.

Convenient pairing

Your speakerphone is detected automatically & paired with only one click³ using Dell Pair⁴ - a simple and secure⁵ way to connect your speakerphone to your PC.

Reliable Performance

Ensuring trustworthy audio clarity, this wireless speakerphone ensures every word is heard and understood, making your work calls seamless and stress-free.

Up to 12 hours

Continuously work all day with a full charge.


Based on Dell analysis (talk time mode) of battery life usage, Apr 2025. Results vary depending on use, operating conditions, and other factors.

Reliable and portable

Dust-tight and water-resistant protection ensures performance in any environment.

Collaboration-ready

This speakerphone is certified for Microsoft Teams and Zoom, and it is compatible with leading UC platforms.

Dell Display and Peripheral Manager

Experience Dell’s singular, innovative application to optimise the performance of your entire Dell PC workspace⁶.

Customise your audio experience

With this intuitive software, you can personalise your audio experience by assigning preset modes like Speech, Bass Boost, or Treble Boost, creating tailored audio presets with the Audio Equaliser, and toggling AI noise cancellation on/off to suit your environment. Stay effortlessly updated with the latest firmware updates, ensuring optimal performance and control over your sound environment.


Disclaimer: Screen image simulated for illustrative purposes only.

Dell Audio App

Conveniently access your wireless speakerphone controls⁷ right from your smartphone and start enjoying clear communication and personalised preferences.


Product Features

  1. Answer/End call
  2. Volume down
  3. Mute/Unmute mic
  4. Volume up
  5. USB-C cord
  6. USB-C wireless audio receiver
  7. Microsoft Teams
  8. Power button
  9. Bluetooth button

1. Recorded in a simulated environment, performance may vary.

2. Recorded on actual speakerphone, in a simulated environment, performance may vary.

3. When accessory is in Bluetooth pairing mode.

4. Dell Pair is available with select accessories, commercial & consumer PCs; availability and functionality vary by model. For more details visit https://dell.com/support/kbdoc/0002016932

5. Based on Dell Analysis. October 2022. For more details visit Guide to Bluetooth Security https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-121r2-upd1.pdf

6. Based on Dell internal analysis, February 2024.

7. Compatible with select Dell Wireless Devices. For more information, visit Dell Audio Support.