Dell Pro Plus Wireless Speakerphone SL525

Dell Pro Plus Wireless Speakerphone

MODEL: SL525

Intelligent Sound, Precise Clarity

Stay ahead with a wireless speakerphone designed to meet the needs of today's dynamic professionals. Combining advanced audio capabilities, versatile connectivity options, and a portable design, the Dell Pro Plus Wireless Speakerphone empowers effortless collaboration wherever your work takes you.

Key Features

Intelligent & Robust Audio

AI-enabled dual-directional noise cancellation keeps conversations clear, while a premium 60mm speaker driver delivers louder, balanced sound for calls and music. Full duplex audio ensures natural, uninterrupted communication.

AI Noise Cancellation: Dual-directional AI-enabled algorithm ensures clear, distraction-free communication by filtering out background noise.

Full Duplex Audio: Experience seamless, natural communication with the ability for both parties to speak and listen simultaneously.

Premium Audio Quality: A 60mm speaker driver delivers rich, crisp sound for an immersive experience during calls, with louder output for clearer listening and balanced sound quality featuring crisp highs, warm mids, and controlled bass.

Superior Sound Capture: Four omnidirectional microphones deliver clear, consistent voice quality from any position.

Reliable Connectivity

Enjoy multiple connection options with Bluetooth 5.3, USB-C, and wireless dongle support, ensuring flexibility and stable performance. Pair effortlessly and securely in just one click¹ with Dell Pair, seamlessly connecting up to 8 devices. Stay productive with up to 12 hours of battery life.²

Versatile Connectivity: Connect effortlessly with Bluetooth 5.3, a USB-C dongle, or an integrated USB-C cable with an in-box USB-A adapter for maximum device compatibility.

Quick Device Pairing: With Dell Pair technology, enjoy quick and effortless setup with compatible Dell devices, so you can focus on what matters most.

Optimized Integration

Certified for Microsoft Teams and Zoom, it effortlessly integrates into your workflow. The Dell Display and Peripheral Manager and Dell Audio app make customization simple on PC and mobile phone respectively.

Seamless Integration: Certified for Microsoft Teams and Zoom, with tools like Dell Display and Peripheral Manager and Dell Audio app for quick setups, customization, and enhanced efficiency.

Compact Durability & Long Battery Life

Designed for portability with an IP64 rating for dust-tight and water-resistant reliability on the go.

Long Battery Life: Stay productive with up to 12 hours¹ of continuous use on a single charge.

Personalize Your Settings

Enhance and personalize your audio experience with Dell Display and Peripheral Manager¹ or Dell Audio app².

Set up is quick and easy, eliminating the need for complicated installation guides. Dell Display and Peripheral Manager¹ installs instantly³ on your PC, providing seamless guidance to get you started right away.

With this intuitive software, you can personalize your audio experience by assigning preset modes like Speech, Bass Boost, or Treble Boost, creating tailored audio presets with the Audio Equalizer, 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.

Conveniently manage your wireless speakerphone settings right from your smartphone and enhance your experience with clear communication and personalized audio preferences.

For IT managers, discover expanded Command Line Interface features from Dell Display and Peripheral Manager.

Download the Dell Audio app² from the Apple App Store® or Google Play™ store.

[Apple App Store] | [Google Play Store]

1 Dell Display and Peripheral Manager is compatible with Microsoft Windows 10, Windows 11 on ARM, Windows 11 for Education and Mac OS operating systems.

2 Dell Audio app is compatible with Android 11 and above, and iOS14 and above. This app may not be available in your location. Please check availability in the app store.

3 Manual installation may be required for some cases due to individual system security requirement.

4 Compatible with select Dell Wireless audio devices only. For more information, visit Dell Audio Support page at www.dell.com/support.

Technical Specifications

Feature Technical Specification Feature Technical Specification
MODELDell Pro Plus Wireless Speakerphone - SL525MAXIMUM CHARGING POWER15W
BATTERY RECHARGEABLEYesCABLE LENGTH75cm
CONTROLSMute/Unmute mic, Volume +, Volume -, Answer/End call, Microsoft TeamsCONNECTIVITY TECHNOLOGYWireless & Wired, USB-C, USB-A
STATUS INDICATORSTeams status, Power, Call/Mute status, Volume, Battery level, Bluetooth statusWIRELESS TECHNOLOGYBT 5.3, USB-C Wireless Audio Receiver
HOST INTERFACEUSB-C (USB-A Adapter Incl.)BLUETOOTH STANDARDBT5.3 LE Audio Supported
MICROPHONE TECHNOLOGYDigital MEMS, OmnidirectionalBLUETOOTH RANGE30m/100 ft
MICROPHONE FREQUENCY RESPONSE100Hz-14kHzPLUG & PLAY SUPPORTYes
MICROPHONE PICKUP RANGEUp to 2.5mARTIFICIAL INTELLIGENCE NOISE CANCELLING (AINC)Yes. AI Up-Link & Down-link Noise Cancellation microphone
MICROPHONE SIGNAL TO NOISE RATIO (SNR)65 dB(A)AI-POWEREDYes. AI Up-Link & Down-link Noise Cancellation microphone
PACKAGE CONTENTSWireless Speakerphone, Wireless Audio Receiver, Travel pouch, Quick Start Guide & Documents, USB-A AdapterMAXIMUM NUMBER OF PAIRED DEVICES SUPPORTEDUp to 8 devices, 2 simultaneous connections
CERTIFICATIONS & STANDARDSMicrosoft Teams Certified, Zoom CertifiedNUMBER OF DEVICES SUPPORTEDConnect up to two wireless audio devices to one wireless audio receiver
SOFTWARE SUPPORTEDDell Display and Peripheral Manager, Dell Audio app, Dell PairIP RATINGIP64
OPERATING SYSTEM SUPPORTEDWin11/10 64 Bit, Mac OS, Chrome OS, Linux, Ubuntu 24.04LIMITED WARRANTY3 Year Limited Hardware with Advanced Exchange Service¹
CHARGER INCLUDEDNoSPEAKER OUTPUT MODEMono
TAA COMPLIANTNoRMS OUTPUT POWER8.0 Watt
WEIGHT (APPROXIMATE)355g +/-3%SPEAKER SIZE/TYPE60mm / Dynamic
FORM FACTORWireless, On-desk speakerphonePEAK AUDIO OUTPUT86 dBSPL @ 0.5m
DIAMETER125mmSPEAKER FREQUENCY RESPONSE100Hz - 14kHz (talk mode), 90Hz - 20kHz (music mode)
DEPTH39mmNUMBER OF MICROPHONES4
MINIMUM CHARGING POWER2.5WBATTERY CAPACITY3200mAh
FAST CHARGING TIMENot Applicable
BATTERY TALK TIME12hr (talk mode), 9hr (music mode)
MAXIMUM BATTERY RECHARGE TIME2.5hr

1 Dell will send a replacement unit the next business day if deemed necessary after remote diagnosis. Find out more at www.dell.com/warranty.

Technical specifications subject to change without prior notice. Product availability varies by country. Please contact your Dell representative for more information.

© 2025 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, EMC, Dell EMC and other trademarks are trademarks of Dell Inc. or its subsidiaries. Apple Logo and App Store® are trademarks of Apple Inc., registered in the U.S. and other countries. Google Play and the Google Play logo are trademarks of Google LLC. Other trademarks may be trademarks of their respective owners.

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