Sony MDR ZX330BT vs. Poly Blackwire 325-M

Headphones Comparison, Reviews and Tests

In depth comparison and review of Sony MDR ZX330BT and Poly Blackwire 325-M. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.

Headphones Specifications Comparison

Sony MDR ZX330BT vs. Poly Blackwire 325-M Comparison Chart
DESIGN AND DIMENSIONS Sony MDR ZX330BT Poly Blackwire 325-M
Product Type Headphones - Bluetooth - wireless - NFC Headset - wired - USB, 3.5 mm jack
Series - 300 Series
Weight 150 g -
Headband Material - Metal
Recommended Use Portable electronics -
Bluetooth Range (Operating Distance) 10 m -
SOUND QUALITY Sony MDR ZX330BT Poly Blackwire 325-M
Headphones Form Factor On-ear On-ear
Headphones Technology Dynamic -
Ear Cups Type Closed -
Foldable Yes - Sony MDR ZX330BT can be folded.
Connectivity Technology Wireless Wired
Wireless Technology Bluetooth -
Bluetooth Version Bluetooth 3.0 -
Bluetooth Profiles Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Low Complexity Subband Coding (SBC) -
Sound Output Mode Stereo Stereo
Frequency Response 20 - 20000 Hz 20 - 20000 Hz Both headphones offer the same frequency response.
Diaphragm 30 mm -
Features - SoundGuard Technology
In-Cord Volume Control - Yes
MICROPHONE Sony MDR ZX330BT Poly Blackwire 325-M
Form Factor Built-in -
Type - Boom
Microphone Technology Electret condenser -
Microphone Operation Mode Stereo -
Frequency Response 100 - 4000 Hz 100 - 10000 Hz Poly Blackwire 325-M offer a larger microphone frequency range than Sony MDR ZX330BT.
Audio Input Details Omni-directional - 100 - 4000 Hz -
REMOTE CONTROL Sony MDR ZX330BT Poly Blackwire 325-M
Controls - Mute, volume, answer/end
CABLE Sony MDR ZX330BT Poly Blackwire 325-M
Cable Type Micro-USB charge cable - 50 cm Headset cable - 2.13 m
Cable Length - 2.13 m
FEATURES Sony MDR ZX330BT Poly Blackwire 325-M
Additional Functions - DSP
BATTERY AND CHARGING Sony MDR ZX330BT Poly Blackwire 325-M
Battery Type Headphone battery rechargeable - Lithium Ion -
Battery Life 30 hours -
Standby Time 300 hours -
Charging Time 4 hours -
WIRELESS LINK Sony MDR ZX330BT Poly Blackwire 325-M
Transmission Range 10 m -
Modulation Type FHSS -
Radio Frequency Range 2.4 - 2.4835GHz -
CONNECTIONS Sony MDR ZX330BT Poly Blackwire 325-M
Connector Type Bluetooth USB (4 PIN USB Type A)
Headphones (mini-phone 3.5 mm 4-pole)
OTHERS Sony MDR ZX330BT Poly Blackwire 325-M
Service & Support - Limited warranty - 2 years
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