Compare Sennheiser CX 400BT vs Sennheiser MOMENTUM True Wireless 2
Connectivity
Ports
USB-C
USB-C
Wireless Connectivity
Bluetooth 5.1
Bluetooth 5.1
Construction
Drivers
Sennheiser 7mm dynamic driver
Headphone Type
In-ear, closed
In-ear, closed acoustics
Speakers
Sennheiser 7mm dynamic driver
Dimensions
Weight
2x 6g (earbud) + 37g (charging case)
6 g
Function
Bluetooth Codecs
SBC, AAC, aptX
SBC, AAC, aptX
Bluetooth Profiles
A2DP, AVRCP, HSP, HFP
A2DP, AVRCP, HSP, HFP
Noise Cancellation
Single-Mic ANC per earbud side
Performance
Battery Life
7 h with earbuds, 20 h with charging case
7 h / 28 h with charging case
Charging Time
1.5 h
1.5 h for full charge / 10 min for 1.5 h playtime
Frequency Response
5 Hz - 21 kHz
5 Hz - 21 kHz
Microphone Frequency Response
100 Hz - 10 kHz
100 Hz - 10 kHz
Production
Availability
2020-09-15
2020-04
Debut
2020-09-01
2020-03
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