DenonTrue wireless earbuds
Denon AH-C840NCW
Denon AH-C840NCW is a true wireless earbuds released in April 2025. Key specs: fit In-ear, active noise cancelling, battery life 10 h, Bluetooth version 5.3.
7.2Score
Noise control & calls7.2
Battery7.1
Build & features4.8
price range$95–120Reference price converted from JPY
- Released
- April 2025
- Brand
Denon- Popularity
- #1,055 of 2,013
In-earFit
YesActive noise cancelling
10 hBattery life
5.3Bluetooth version
IPx4Water resistance (IPx)
YesMultipoint (two devices)
Spec guide
How it ranks among true wireless earbuds of 2025
Battery life · 10 hBottom 45%Bluetooth version · 5.3Bottom 40%Water resistance (IPx) · IPx4Bottom 25%
Compared with true wireless earbuds released in 2025. Bars show the share of models it beats.
compared with other true wireless earbuds
Why is AH-C840NCW a good choice?
Battery life: 10 hbetter than 72% of true wireless earbuds
Driver size: 12 mmbetter than 80% of true wireless earbuds
Weak points
Water resistance (IPx): IPx4worse than 99% of true wireless earbuds
Specifications
Full specifications
Noise control
- Active noise cancelling
- Yes
- Transparency / ambient mode
- Yes
Battery & charging
- Battery life
- 10 h
- Battery life with ANC
- 7 h
- Charging time
- 2 h
- Wireless charging (case)
- Yes
Connectivity
- Wireless
- Yes
- Hi-res codec (LDAC / aptX HD / LHDC)
- No
- aptX
- No
- LDAC
- No
- Multipoint (two devices)
- Yes
- LE Audio
- Yes
- USB-C
- Yes
Design & build
- Earbud weight (each)
- 5 g
- Protection rating
- IPX4
- Water resistance (IPx)
- IPx4
Features
- Touch controls
- Yes
- Hands-free calls
- Yes
Specs are collected from manufacturers and open databases and normalised to one format; check details with the seller before you buy.
In collections
Headphones & speakers: Active noise cancelling + wireless charging (case)91Headphones & speakers: Transparency / ambient mode + wireless charging (case)92Headphones & speakers: Multipoint (two devices) + wireless charging (case)101True wireless earbuds: Transparency / ambient mode271Headphones & speakers: Transparency / ambient mode + multipoint (two devices)285True wireless earbuds: Multipoint (two devices)310True wireless earbuds: Active noise cancelling313Headphones & speakers: Active noise cancelling + multipoint (two devices)320
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