Poly Blackwire 3225 series vs Sennheiser PC 31 II

Microphones

One of the standout features of the is its Boom microphone and it's Advanced noise reduction. This makes it exceptionally good for voice calls and online meetings, where clear communication is crucial. Meanwhile, Sennheiser PC 31 II has Unidirectional microphone suitable for various sectors.

Technichal specifications
Poly Blackwire 3225 series
Sennheiser PC 31 II
Type
On-ear
On-ear
Connectivity
Wired, USB-A / USB-C connection
Wired, 3.5mm audio jack
Battery life
N/A
N/A
Charge time
N/A
N/A
Charging method
N/A
N/A
Wireless range
N/A
N/A
Latency
N/A
N/A
Batteries
N/A
N/A
Driver info
28mm dynamic
32 Ohm impedance, 109 dB sensitivity
Physical specifications
Poly Blackwire 3225 series
Sennheiser PC 31 II
Weight
87 grams
90 grams
Dimensions
155x178x32 mm
144 x 183 x 48 mm
Materials
Durable plastic with leatherette ear cushions
Plastic
Color options
Black with red accents
Black
Mute button
Yes
Yes
Touch controls
No
No
Accessories
USB-A / USB-C cable
N/A
Cable length
2.3m
3m
Water/sweat resistence
N/A
N/A
Microphone
Poly Blackwire 3225 series
Sennheiser PC 31 II
Type
Boom
Boom
Directionality
Omnidirectional
Unidirectional
Frequency response
100Hz - 10kHz
80Hz - 15kHz
Sensitivity
-38 dBV/Pa
-38 dBV/Pa
AI features
Advanced noise reduction
Noise reduction, removes consistently produced, unwanted noises like fans, road noise, and other consistent sounds.
Speaker
Poly Blackwire 3225 series
Sennheiser PC 31 II
Frequency range
20 Hz - 20 kHz
40 Hz - 18 kHz
Mono/stereo audio
Stereo
Stereo
Transparency mode
No
No
AI features
No
No
Popularity and rating
Poly Blackwire 3225 series
Sennheiser PC 31 II
Brand popularity
High
High
Model popularity
High
Good
Comfort rating
High
Good
Sound quality rating
High
Medium
Durability rating
Medium to High
Good
Comfort for long wear
High
Good

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