Comparison
Liberty 4 vs EAH-AZ40
Earbud battery life
9 h
7.5 h
Total battery life
28 h
25 h
Weight / earbud
5.8 g
5 g
Launch price
129 $
129 $
Noise cancellation
Yes
No
Certification
IPX4
IPX4
Bluetooth
5.3
5.2
USB-C
Yes
Yes
Multipoint
Yes
Yes
Codecs
AAC, SBC, LDAC
SBC, AAC