Compare Sennheiser HD 450BT vs Sennheiser MOMENTUM 3 vs Sennheiser HD 820
Variants
HD 820
HDV 820
Connectivity
Ports
USB-C
Mini jack, USB-C
[Input] 6.35 mm + 4.4 mm + XLR-4 | [Output] XLR, RCA, Coax, Optical, USB-B
Wireless Connectivity
Bluetooth 5.0
Bluetooth 5, NFC
Construction
Battery | Capacity
600 mAh
Cable
3 m
Colors
Black, White
Form Factor
Wireless headphones, over-ear headphones
Headphone Type
Dynamic headphones, Closed headphones
Microphone
MEMS
Speakers
Dynamic, closed
Dimensions
Weight
238 g
Function
Bluetooth Codecs
SBC, AAC, AptX, AptX Low Latency
SBC, aptX, aptX Low Latency, AAC
Bluetooth Profiles
A2DP, AVRCP, HSP, HFP
Microphone Pickup Pattern
Dual Beamforming
Noise Cancellation
Yes
3 active noise cancelling modes
Performance
Battery Life
30 hours music playback via Bluetooth with ANC activated
17 h
Charging Time
2 h
Frequency Response
18Hz to 22kHz (-10 dB)
6 Hz - 22 kHz
103 dB at 1 kHz, 1V
Impedance
300 ohms
Max Sound Level
108 dB (1 kHz/0 dBFS)
103 dB at 1 kHz, 1V SPL
Microphone Frequency Response
80 Hz to 6000 Hz (-3 dB)
Production
Debut
2020 CES
IFA 2019
Made In
Germany
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