Specification Sheet

Packaging
Content of delivery CX Plus True Wireless earbuds
Charging case
USB-C charging cable
Silicone ear adapter sets (XS/S/M/L)
Product weight 47 g (both earbuds and charging case)
6 g (single earbud)
35 g (charging case)
Product dimension
(L x W x H)
Earbuds and charging case:
59 x 33.8 x 42.3 mm (2.3 x 1.3 x 1.6 in)
Packaging type Hard box
Language on packaging English, German, French, Spanish,
Simplified Chinese, Japanese
Dimensions product packaging
(L x W x H)
170 x 115 x 47 mm
(6.7 x 4.5 x 1.85 in)
Weight of headset and
packaging (incl. accessories)
202 g
(7.12 oz)
Dimensions of outer master
carton (L x W x H)
279 x 245 x 200 mm
(11 x 9.6 x 7.87 in)
Number of products per outer
master carton
12
Total weight of outer master
carton & products
2900 g
(6.4 lbs)
WEEE packaging infor mation
Material of single package
(incl. weight)
Paper / Cardboard:
140 g (4.9 oz)
Plastic:
2.8 g (0.09 oz)
Material of outer master
carton (incl. weight)
Paper / Cardboard:
448 g (15.8 oz)
Plastic:
29 g (1 oz)
WEEE Weight (Net weight) 60 g (2.11 oz)
08/21 Sennheiser is a registered trademark of Sennheiser electronic GmbH & Co. KG www.sennheiser.com
General data
Wearing style True wireless stereo earphones
Ear coupling Ear canal
Connectivity Bluetooth 5.2 compliant, class 1, 10 mW (max)
Supported profiles A2DP, AVRCP, HFP
Supported codecs SBC, AAC, aptX™, aptX adaptive™
Speaker principle Dynamic
Speaker size 7 mm diameter
Speaker frequency range 5 Hz – 21 kHz
Speaker sensitivity 114 dB SPL (1 kHz / 0 dBFS)
Speaker THD <0.08% (1 kHz / 94 dB)
Speaker impedance Not applicable (active BT headphones)
Active Noise Cancellation Single mic ANC per earbud
Mic principle MEMS
Mic frequency range 100 Hz – 10 kHz
Mic pick-up pattern 2 mic beamforming per earbud
Battery lifespan Up to 8 hrs music playtime with earbuds;
Up to 24 hrs overall music playtime with
charging case (test condition: iPhone, mid
volume level, ANC/TH off)
Charging time Approx. 1.5 hrs for fully charged;
After 10 min charging 1 hrs music playtime
Battery type Built-in Lithium rechargeable batteries,
3.7 V left/right earbud: 55 mAh, charging
case: 400-420 mAh
Power supply 5 V⎓, 600 mA max, USB charging via
USB-C socket at charging case
Technical Data
Model name CXPLUSTW1 Black CXPLUSTW1 White
EAN 4044155258035 4044155258042
UPC 615104357327 615104357341
Article no. 509188 509189
When True Wireless sound exceeds every expectation, you’re
listening to the CX Plus True Wireless from Sennheiser. They
deliver a thrilling, high-quality sound experience with Active Noise
Cancellation, effortless smart interaction and a sleek design for
supremely comfortable all-day enjoyment.
Superior sound
– Sennheiser Superior Sound: Powered by Sennheiser’s TrueResponse
transducer for high fidelity sound
– Active Noise Cancellation & Transparent Hearing: Block out noise or
gain awareness of external sounds at a touch in any environment
– Built-in Equalizer and Bass Boost: Adjust the Equalizer and Bass Boost
levels for a tailored sound and audio experience
Designed for full day wearing
– IPX4: Splash resistance for trouble-free use while travelling,
commuting or exercising
– Compact, Ergonomic Design: With 4 ear adapter sizes to ensure
optimal comfort and a secure fit for anyone
– Battery Life: Up to 8 hours and 24 hours of play back time with on
the go charging via the case
A smarter user experience
– Customizable Touch Controls: Personalize touch controls for music,
calls and voice assistant to match individual preference for intuitive
operation
– Independent Earbud Use: Convenient feature enables the left and right
earbuds to be used individually or as a pair
– Noise Reduced Microphones: Crystal-clear voice pickup by dual
beamforming mics on each earbud to ensure speech optimized calls
and voice assistant access (Siri and Google Assistant)
– Smart Pause: The earbuds pause and resume playback automatically
when taken out or replaced in the ear
– Connections Management: Bluetooth connections can be easily
managed via the Sennheiser Smart Control app
CX Plus True Wireless
SPEC SHEET