Compare Razer Hammerhead True Wireless Pro vs Sennheiser CX 400BT
Connectivity
Ports
USB-C
USB-C
Wireless Connectivity
Bluetooth 5.1
Bluetooth 5.1
Construction
Drivers
10mm
Sennheiser 7mm dynamic driver
Form Factor
In-ear
Headphone Type
In-ear, closed
Dimensions
Weight
5 g
2x 6g (earbud) + 37g (charging case)
Function
Bluetooth Codecs
SBC, AAC
SBC, AAC, aptX
Bluetooth Profiles
A2DP, AVRCP, HSP, HFP
Microphone Pickup Pattern
Omnidirectional
Performance
Battery Life
4h per charge, up to 20h total
7 h with earbuds, 20 h with charging case
Charging Time
1.5 h
Frequency Response
20Hz - 20kHz
5 Hz - 21 kHz
Impedance
16 ohms
Microphone Frequency Response
100Hz - 10kHz
100 Hz - 10 kHz
Microphone Sensitivity
-42 dB
Production
Availability
2020-09-15
Debut
2020-12-03
2020-09-01
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