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  3. CX True Wireless vs EAH-AZ40

Sennheiser CX True Wireless vs Technics EAH-AZ40

What CX True Wireless does better (2) and where EAH-AZ40 wins (0) — every spec side by side.

Sennheiser CX True Wireless
Sennheiser · 2021CX True Wireless
4.5Score
2 advantages≈ $95
vs
Technics EAH-AZ40
Technics · 2021EAH-AZ40
4.9Score
0 advantages≈ $70
Higher score
5.9Battery4.7

Why is CX True Wireless better than EAH-AZ40?

  1. Battery life9 h vs 7.5 h+20%
  2. aptXYes · EAH-AZ40: No

Why is EAH-AZ40 better than CX True Wireless?

EAH-AZ40 has no measurable advantages in this pair.

Specifications

Side by side

Sound
FitIn-earIn-ear
Ear cup designClosed-backClosed-back
Driver typeDynamicDynamic
Driver size—6 mm
Lowest frequency—20 Hz
Highest frequency—20,000 Hz
Adjustable equaliserYesYes
Noise control
Active noise cancellingNo—
Transparency / ambient mode—Yes
Battery & charging
Battery life9 h7.5 h
Total with charging case27 h—
Charging time—2 h
Fast charging supportYes—
Connectivity
WirelessYesYes
Bluetooth version5.15.2
Bluetooth codecsaptX, AAC, SBCAAC, SBC
Hi-res codec (LDAC / aptX HD / LHDC)NoNo
aptXYesNo
LDACNoNo
Multipoint (two devices)—Yes
USB-CYesYes
Smart & streaming
Companion appYes—
Design & build
Earbud weight (each)—5 g
Protection ratingIPX4IPX4
Water resistance (IPx)IPx4IPx4
ColoursBlack, White—
Features
Touch controlsYesYes
Hands-free calls—Yes
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