Poly Voyager 4220 USB-A vs. Sennheiser HMDC 27

Headphones Comparison, Reviews and Tests

In depth comparison and review of Poly Voyager 4220 USB-A and Sennheiser HMDC 27. 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

Poly Voyager 4220 USB-A vs. Sennheiser HMDC 27 Comparison Chart
DESIGN AND DIMENSIONS Poly Voyager 4220 USB-A Sennheiser HMDC 27
Product Type Headset - Bluetooth - wireless - USB Headset - wired
Weight 150 g 240 g Poly Voyager 4220 USB-A are lighter than Poly Voyager 4220 USB-A headphones.
Recommended Use - Professional audio
Bluetooth Range (Operating Distance) 30 m -
SOUND QUALITY Poly Voyager 4220 USB-A Sennheiser HMDC 27
Headphones Form Factor On-ear Full size
Headphones Technology - Dynamic
Ear Cups Type - Closed
Connectivity Technology Wireless Wired
Wireless Technology Bluetooth -
Bluetooth Version Bluetooth 4.1 -
Bluetooth Profiles Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) -
Active Noise Cancelling - Yes Sennheiser HMDC 27 are equipped with active noice cancellation.
Sound Output Mode Stereo Stereo
Frequency Response 20 - 20000 Hz 8 - 18000 Hz Poly Voyager 4220 USB-A offer a larger frequency range than Sennheiser HMDC 27.
Total Harmonic Distortion (THD) - <0.1%
Sensitivity 94 dB -
Impedance 32 Ohm -
Max Sound Pressure - 128 dB
Diaphragm 32 mm -
Features SoundGuard Technology -
MICROPHONE Poly Voyager 4220 USB-A Sennheiser HMDC 27
Type Boom Boom
Microphone Technology - Dynamic
Microphone Operation Mode Uni-directional Hypercardioid
Frequency Response - 40 - 18000 Hz
Microphones Included 2 -
REMOTE CONTROL Poly Voyager 4220 USB-A Sennheiser HMDC 27
Controls Mute, volume, answer/end, play/pause, next/previous track -
FEATURES Poly Voyager 4220 USB-A Sennheiser HMDC 27
Features Voice alerts EPOS ActiveGard
BATTERY AND CHARGING Poly Voyager 4220 USB-A Sennheiser HMDC 27
Battery Type Headset battery rechargeable - lithium polymer -
Battery Capacity 360 mAh -
Battery Life 12 hour(s) -
Battery Life Details Continuous playback: up to 15 hours
Continuous talk: up to 12 hours
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Standby Time 312 hours -
Charging Time 1.5 hour(s) -
OTHERS Poly Voyager 4220 USB-A Sennheiser HMDC 27
Included Accessories Bluetooth USB adapter Wind screen, cable clip, headband padding
Software Certification Certified for Microsoft Teams -
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