Product comparison · 2 speakerphones

Dell SL525 speakerphone Universal Black vs Lenovo EXPAND 30 +

17specifications compared
10differ
7identical
21known for one product only

Key differences

The Dell SL525 speakerphone Universal Black has 5 m more maximum operating distance than the Lenovo EXPAND 30 + (30 m vs 25 m). The Lenovo EXPAND 30 + has 10 - 20000 Hz more frequency range than the Dell SL525 speakerphone Universal Black (100 - 20000 Hz vs 90 - 20000 Hz). The Dell SL525 speakerphone Universal Black has 2 more microphones than the Lenovo EXPAND 30 + (4 vs 2). Product colour: Black on the Dell SL525 speakerphone Universal Black, Black, Silver on the Lenovo EXPAND 30 +. Microphone frequency: 100 - 14000 Hz on the Dell SL525 speakerphone Universal Black, 150 - 7500 Hz on the Lenovo EXPAND 30 +.

Product colour
- SL525 speakerphone Universal Black:Black
- EXPAND 30 +:Black, Silver
Maximum operating distance
- SL525 speakerphone Universal Black:30 m
- EXPAND 30 +:25 m
Frequency range
- SL525 speakerphone Universal Black:90 - 20000 Hz
- EXPAND 30 +:100 - 20000 Hz
Microphone frequency
- SL525 speakerphone Universal Black:100 - 14000 Hz
- EXPAND 30 +:150 - 7500 Hz
Number of microphones
- SL525 speakerphone Universal Black:4
- EXPAND 30 +:2
Connectivity technology
- SL525 speakerphone Universal Black:Wireless
- EXPAND 30 +:Wired & Wireless
Bluetooth version
- SL525 speakerphone Universal Black:5.3
- EXPAND 30 +:5.0
Power source type
- SL525 speakerphone Universal Black:Battery
- EXPAND 30 +:Battery, USB

Side by side

Differences highlightedShow differences only

Comparison of SL525, EXPAND 30 +
38 specifications	A Dell SL525 speakerphone Universal Black Model SL525 View product	B Lenovo EXPAND 30 +View product
Features2 differ
Product colourDiffers	Black	Black, Silver
PortableKnown for one	Yes	Unknown — not stated by the source
Maximum operating distanceDiffers	30 m	25 m
Cable lengthKnown for one	0.75 m	Unknown — not stated by the source
International Protection (IP) codeKnown for one	IP64	Unknown — not stated by the source
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
CertificationKnown for one	Microsoft Teams Zoom	Unknown — not stated by the source
AutoKnown for one	Unknown — not stated by the source	No
LED indicatorsKnown for one	Unknown — not stated by the source	Yes
Loudspeakers1 differ
SensitivityKnown for one	86 dB	Unknown — not stated by the source
Driver typeKnown for one	Dynamic	Unknown — not stated by the source
Output powerKnown for one	8 W	Unknown — not stated by the source
Frequency rangeDiffers	90 - 20000 Hz	100 - 20000 Hz
Microphone2 differ
Microphone frequencyDiffers	100 - 14000 Hz	150 - 7500 Hz
Number of microphonesDiffers	4	2
Microphone muteKnown for one	Unknown — not stated by the source	Yes
Ports & interfaces2 differ
Connectivity technologyDiffers	Wireless	Wired & Wireless
Bluetooth versionDiffers	5.3	5.0
InterfaceKnown for one	Unknown — not stated by the source	USB/Bluetooth
Bluetooth profilesKnown for one	Unknown — not stated by the source	A2DP, AVRCP, DI, HFP, HSP
Power3 differ
Power source typeDiffers	Battery	Battery, USB
Talk timeDiffers	12 h	18 h
Battery recharge timeDiffers	2.5 h	3.33 h
Batteryidentical
Battery capacityKnown for one	3200 mAh	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	125 mm	Unknown — not stated by the source
DepthKnown for one	39 mm	Unknown — not stated by the source
HeightKnown for one	125 mm	Unknown — not stated by the source
WeightKnown for one	355 g	Unknown — not stated by the source
Packaging contentidentical
QuantityKnown for one	1	Unknown — not stated by the source
Cables includedKnown for one	USB Type-A	Unknown — not stated by the source
Quick start guideKnown for one	Yes	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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