Sennheiser CX Plus Specifications, Tests and Review

Headphone type
In-ear
Connectivity
Wireless
Frequency Response
5 - 21000 Hz

Get the key specs, technical data, ratings and full review of Sennheiser CX Plus all in one place. Compare your selected model with other alternatives and give your decision on the best headphones a solid base with our comprehensive overview.

Sennheiser CX Plus Full Specifications and Details

design and dimensions sound quality microphone cable features battery and charging others

DESIGN AND DIMENSIONS Sennheiser CX Plus
Product Type True wireless earphones - Bluetooth - wireless
Dimensions & Weight Details Earbud: 5.9 cm x 3.38 cm x 4.23 cm / 6 g
Charging case: 35 g
Colour White | Black
Protection Splashproof, IPX4
Recommended Use Portable electronics

The wireless headphones Sennheiser CX Plus allow unrestricted movement, which increases the comfort of using the headphones. This feature is particularly popular with headphones for casual use. However, a certain limiting factor of wireless headphones compared to wired ones is a certain delay in sound transmission between the source and the headphones (but almost indistinguishable for the average user) and the need for regular charging. Unlike wired headphones, wireless headphones are charged separately. The headphones use the Bluetooth 5.2 technology for sound transmission.

The headphones are designed as in-ear headphones, which are inserted inside the ear to provide more or less isolation from ambient noise. The level of isolation may vary depending on whether the ambient noise isolation feature is present or not. One of the main advantages of these headphones compared to over-the-head ones is their stackability and easy portability.

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SOUND QUALITY Sennheiser CX Plus
Headphones Form Factor In-ear
Headphones Technology Dynamic
Connectivity Technology Wireless
Wireless Technology Bluetooth
Bluetooth Version Bluetooth 5.2 Better than 98 % of in-ear headphones rated.
Bluetooth Profiles Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP)
Bluetooth Audio Codec SBC, AAC, aptX, aptX Adaptive
Active Noise Cancelling Yes Better than 94 % of in-ear headphones rated.
Sound Output Mode Stereo
Sound Effects Bass Boost
Frequency Response 5 - 21000 Hz Better than 65 % of in-ear headphones rated.
Diaphragm 7 mm Worse than 90 % of in-ear headphones rated.
Simultaneously Connectable Devices Qty (Multipoint) 1
Features TrueResponse technology

The sound quality can be affected by many factors. When it comes to frequency range, a wider range will allow more detail to be heard during your listening session. However, it is important to note that the ability to perceive frequencies varies from person to person. The average person is able to hear frequencies in the range of 16 to 20 000 Hz. That is why headphone manufacturers usually focus on the 20 to 20 000 Hz range. If the lower values are lower, headphones are better able to reproduce bass tones, as these represent frequencies up to approximately 256 Hz. Conversely, values from 2 048 Hz upwards are treble. Thus, headphones with a high upper limit will provide a much more accurate reproduction of high tones. Headphones Sennheiser CX Plus have a frequency range of 5 - 21000 Hz.

The headphones are composed of many various components, one of the most important is the diaphragm. Diaphragm transforms the electrical signal into sound and therefore its quality affects the overall listening experience. There are three types of diaphragms: thin, medium-thick, and thicker. A thin 6 mm thick diaphragm responds quickly to high frequencies but less sensitively to bass. The medium-thick 10 mm diaphragm provides a balanced sound profile, allowing you to enjoy both bass and treble. The thicker 20 mm diaphragm is more sensitive to higher frequencies but has a poorer bass response. These headphones are equipped with the 7 mm.

For an even more undisturbed listening experience, the headphones have a special Active Noise Canceling feature.

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MICROPHONE Sennheiser CX Plus
Form Factor Built-in
Frequency Response 100 - 10000 Hz Better than 75 % of in-ear headphones rated.
Microphones Included 4 Better than 90 % of in-ear headphones rated.
CABLE Sennheiser CX Plus
Cable Type USB-C charge cable - detachable
FEATURES Sennheiser CX Plus
Features Touch control
Internet of Things (IoT) Compatible Yes
Intelligent Assistant Siri, Google Assistant

Demanding users and technology enthusiasts will appreciate an intelligent assistant with whom they can partially control connected devices. For example, they can adjust the volume or request information about messages or alerts.

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BATTERY AND CHARGING Sennheiser CX Plus
Battery Type Headphone battery rechargeable - Lithium Ion
Battery Capacity 55 mAh Worse than 71 % of in-ear headphones rated.
Battery Life Details Continuous playback (with included charging case): up to 24 hours
Charging Time 1.5 hour(s) Better than 88 % of in-ear headphones rated.
Included Qty 2

These headphones have a battery capacity of 55 mAh.

Charging time is 1.5 hour(s).

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OTHERS Sennheiser CX Plus
Included Accessories 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh)
Service & Support Limited warranty - 2 years

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