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Sennheiser/ CX
CX Plus True Wireless
CX earbuds upgraded with ANC and aptX Adaptive
September 14, 2021★ Notable model179 $ at launchActive noise cancellation
Generation Lineage
8 hEarbud only
24 hWith case
IPX4Resistance
5.2Bluetooth
The surprising part — Its predecessor actually had 11% more battery life. Explore battery evolution →
Battery Benchmark · 8 h
Offering 8 h per charge placed this model well above the historical average of early generations (~4-5h).
Key Technology
2021 → 2026Active Noise Cancellation (ANC)
ANC became the defining battlefield of premium wireless earbuds starting in 2019.
Lineage DNA
Tracked since CX 400BT True Wireless (2020), the first model in the line.
Battery life (earbud)
8 h+14% since the 1st model
Total battery life (case)
24 h+20% since the 1st model
Weight per earbud
6 g0% since the 1st model★ line record
Launch price
179 $-10% since the 1st model
Entity graph
Explore this story
3 generationsSennheiser CX
2020 → 2021
Comfort & durability
Weight per earbud6 g
CertificationIPX4
Battery life
Earbud only8 h
With case24 h
General
Release dateSeptember 14, 2021
Launch price179 $
Compared to CX True Wireless
- +Gains active noise cancellation (ANC)
- --11% earbud-only battery life
- --11% total battery life with case
- ·SBC, AAC, aptX, aptX Adaptive codecs vs SBC, AAC, aptX
- -$50 pricier at launch
Popular comparisons
CX Plus True Wireless vs CX True Wireless
Previous model · Sennheiser · 2021
CX Plus True Wireless vs FreeBuds 2 Pro
Competing alternative · Huawei · 2019
Also released in 2021
2021What else happened this year?
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