Product comparison · 2 speakerphones

Lenovo 4Y71Q47766 speakerphone PC Bluetooth Black vs Yamaha PJP-20UR speakerphone PC USB 2.0 Black

16specifications compared
14differ
2identical
31known for one product only

Key differences

The Yamaha PJP-20UR speakerphone PC USB 2.0 Black has 4 dB more sensitivity than the Lenovo 4Y71Q47766 speakerphone PC Bluetooth Black (85 dB vs 81 dB). The Yamaha PJP-20UR speakerphone PC USB 2.0 Black has 280 - 20000 Hz more frequency range than the Lenovo 4Y71Q47766 speakerphone PC Bluetooth Black (300 - 20000 Hz vs 20 - 20000 Hz). The Lenovo 4Y71Q47766 speakerphone PC Bluetooth Black has 5 more microphones than the Yamaha PJP-20UR speakerphone PC USB 2.0 Black (8 vs 3). Interface: Bluetooth on the Lenovo 4Y71Q47766 speakerphone PC Bluetooth Black, USB 2.0 on the Yamaha PJP-20UR speakerphone PC USB 2.0 Black. Connectivity technology: Wired & Wireless on the Lenovo 4Y71Q47766 speakerphone PC Bluetooth Black, Wired on the Yamaha PJP-20UR speakerphone PC USB 2.0 Black.

Sensitivity
- 4Y71Q47766 speakerphone PC Bluetooth Black:81 dB
- PJP-20UR speakerphone PC USB 2.0 Black:85 dB
Frequency range
- 4Y71Q47766 speakerphone PC Bluetooth Black:20 - 20000 Hz
- PJP-20UR speakerphone PC USB 2.0 Black:300 - 20000 Hz
Number of microphones
- 4Y71Q47766 speakerphone PC Bluetooth Black:8
- PJP-20UR speakerphone PC USB 2.0 Black:3
Interface
- 4Y71Q47766 speakerphone PC Bluetooth Black:Bluetooth
- PJP-20UR speakerphone PC USB 2.0 Black:USB 2.0
Connectivity technology
- 4Y71Q47766 speakerphone PC Bluetooth Black:Wired & Wireless
- PJP-20UR speakerphone PC USB 2.0 Black:Wired
Power source type
- 4Y71Q47766 speakerphone PC Bluetooth Black:Battery
- PJP-20UR speakerphone PC USB 2.0 Black:USB
Operating temperature (T-T)
- 4Y71Q47766 speakerphone PC Bluetooth Black:0 - 60 °C
- PJP-20UR speakerphone PC USB 2.0 Black:0 - 40 °C
Operating relative humidity (H-H)
- 4Y71Q47766 speakerphone PC Bluetooth Black:0 - 95%
- PJP-20UR speakerphone PC USB 2.0 Black:20 - 85%

Side by side

Differences highlightedShow differences only

Comparison of 4Y71Q47766, PJP-20UR
47 specifications	A Lenovo 4Y71Q47766 speakerphone PC Bluetooth Black Model 4Y71Q47766 View product	B Yamaha PJP-20UR speakerphone PC USB 2.0 Black Model PJP-20UR View product
Features2 differ
Device type	PC	PC
AutoKnown for one	No	Unknown — not stated by the source
Product colour	Black	Black
PortableKnown for one	Yes	Unknown — not stated by the source
Noise cancelingKnown for one	Yes	Unknown — not stated by the source
Cable lengthKnown for one	2 m	Unknown — not stated by the source
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
On/off switchKnown for one	Yes	Unknown — not stated by the source
International Protection (IP) codeKnown for one	IP54	Unknown — not stated by the source
Windows operating systems supportedDiffers	Windows 10, Windows 11	Windows 2000, Windows 7, Windows 8, Windows 8.1, Windows Vista, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Mac operating systems supportedKnown for one	Yes	Unknown — not stated by the source
CertificationDiffers	BQB, CB, FCC ID, IC ID, CE RED, JRF, VCCI, NBTC, SIRIM, SRRC, NTC, IMDA, BIS, RCM, OFCA, WPC	VCCI Class B
Noise reductionKnown for one	Unknown — not stated by the source	Yes
Echo cancellationKnown for one	Unknown — not stated by the source	Yes
Control typeKnown for one	Unknown — not stated by the source	Buttons
Loudspeakers2 differ
SensitivityDiffers	81 dB	85 dB
Frequency rangeDiffers	20 - 20000 Hz	300 - 20000 Hz
ImpedanceKnown for one	3 Ω	Unknown — not stated by the source
Microphone1 differ
Microphone frequencyKnown for one	150 - 7000 Hz	Unknown — not stated by the source
Number of microphonesDiffers	8	3
Ports & interfaces2 differ
InterfaceDiffers	Bluetooth	USB 2.0
Connectivity technologyDiffers	Wired & Wireless	Wired
BluetoothKnown for one	Yes	Unknown — not stated by the source
Bluetooth versionKnown for one	5.3	Unknown — not stated by the source
USB connector typeKnown for one	USB Type-C	Unknown — not stated by the source
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	1
Power1 differ
Power source typeDiffers	Battery	USB
Battery life (max)Known for one	12 h	Unknown — not stated by the source
Battery recharge timeKnown for one	4 h	Unknown — not stated by the source
Power consumption (typical)Known for one	Unknown — not stated by the source	2.5 W
Input voltageKnown for one	Unknown — not stated by the source	5 V
CurrentKnown for one	Unknown — not stated by the source	0.5 A
Operational conditions2 differ
Operating temperature (T-T)Differs	0 - 60 °C	0 - 40 °C
Operating relative humidity (H-H)Differs	0 - 95%	20 - 85%
Batteryidentical
Battery technologyKnown for one	Lithium-Ion (Li-Ion)	Unknown — not stated by the source
Battery capacityKnown for one	4215 mAh	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	122.5 mm	160 mm
DepthDiffers	38.5 mm	149 mm
HeightDiffers	122.5 mm	33 mm
WeightDiffers	400 g	290 g
Packaging dataidentical
Package widthKnown for one	172 mm	Unknown — not stated by the source
Package depthKnown for one	161.5 mm	Unknown — not stated by the source
Package heightKnown for one	77 mm	Unknown — not stated by the source
Package weightKnown for one	740 g	Unknown — not stated by the source
Package typeKnown for one	Box	Unknown — not stated by the source
Packaging contentidentical
Cables includedKnown for one	Unknown — not stated by the source	USB
Quick start guideKnown for one	Unknown — not stated by the source	Yes

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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