Compare Bose QuietComfort vs Sennheiser CX 400BT
Connectivity
Ports
USB-C
USB-C
Wireless Connectivity
Bluetooth 5.1
Bluetooth 5.1
Construction
Cable
30 cm
Colors
Triple Black, Soapstone
Drivers
Sennheiser 7mm dynamic driver
Headphone Type
In-ear, closed
Microphone
4 total microphones
Dimensions
Size | Depth
1.06 inch
Size | Height
1.54 inch
Size | Width
1.02 inch
Weight
8.6 g
2x 6g (earbud) + 37g (charging case)
Function
Bluetooth Codecs
SBC, AAC
SBC, AAC, aptX
Bluetooth Profiles
A2DP, AVRCP, HSP, HFP
Fast Charging
15 minutes for 2 h
Weather Resistance
IPX4
Wireless Charging
Qi certified wireless charging pad
Performance
Battery Life
Up to 6 h + 2 charges = 18 h
7 h with earbuds, 20 h with charging case
Charging Time
2 h
1.5 h
Frequency Response
5 Hz - 21 kHz
Microphone Frequency Response
100 Hz - 10 kHz
Production
Availability
2020-09-15
Debut
2020-09-10
2020-09-01
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