Sennheiser CX 400BT
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Premium True Wireless in-ear headphones with built-in microphones. They are distinguished by high sound quality, which is ensured by the high-tech design of branded dynamic drivers with neodymium magnets and support for aptX and AAC audio codecs. The latter guarantee flawlessly accurate transmission of digital audio signal compressed without loss of quality by FLAC or Apple Lossless compressors.
Due to their low weight (6 g each) and compact size, they do not create any problems during transportation and storage. The manufacturer claims the reproduction of an extended frequency range (from 5 Hz to 21 kHz), high sensitivity and impressively low harmonic distortion. Together, these characteristics make the Sennheiser CX 400BT headphones capable of delivering balanced and highly detailed sound suitable for all types of music. Built-in microphones turn them into a solid wireless headset for voice communication in cellular networks. The equalizer in the Sennheiser Smart Control mobile app lets you fine-tune the sound, while the podcast mode enhances the quality of your spoken word.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Sennheiser 2025 - new arrivals, bestsellers, and the most relevant models Sennheiser.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Sennheiser 2025 - new arrivals, bestsellers, and the most relevant models Sennheiser.
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Sennheiser Consumer Audio CX 400BT True Wireless Earbuds - Bluetooth In-Ear Headphones for Music and Calls - with Noise Canc | $153.58 |  | |||
2020 Sennheiser CX 400BT White | $149.95 |  | |||
Sennheiser CX-400BT Black True Wireless Earbuds 508900 | $391.93 | | |||
Sennheiser CX 400BT | $148.88 |  | |||
Series Sennheiser CX (in-ear)Compare using chart →
in-ear, wireless, true wireless, Bluetooth v 5.2, AAC, aptX, active noise cancellation, waterproof, 5 – 21000 Hz, battery: up to 6 h
in-ear, wireless, true wireless, Bluetooth v 5.2, AAC, aptX, waterproof, 5 – 21000 Hz, 16 Ohm, battery: 55 mAh, up to 9 h, with case + 27 h
in-ear, wireless, true wireless, Bluetooth v 5.1, AAC, aptX, 5 – 21000 Hz, battery: 60 mAh, up to 7 h, with case + 20 h
in-ear, wired, 3.5 mm, 6.35 mm, 1.6 m, no microphone, active noise cancellation, 20 – 21000 Hz, 42 Ohm, L-plug, battery: with case + 6.8 ohms when noise canceling is activated
for active sports, in-ear, wireless, Bluetooth v 4.2, AAC, aptX, waterproof, 17 – 21000 Hz, 16 Ohm, battery: up to 6 h
in-ear, wireless, Bluetooth v 5.0, AAC, 20 – 20000 Hz, 28 Ohm, battery: 100 mAh, up to 10 h
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We recommendCompare using chart →
in-ear, wireless, true wireless, Bluetooth v 4.2, AAC, 20 – 20000 Hz, battery: 60 mAh, up to 4 h, with case + 35 h
in-ear, wireless, true wireless, Bluetooth v 5.0, AAC, active noise cancellation, waterproof, 20 – 20000 Hz, 16 Ohm, battery: 55 mAh, up to 9 h, with case + 24 h
in-ear, wireless, true wireless, Bluetooth v 5.2, AAC, active noise cancellation, waterproof, 10 – 20000 Hz, battery: 85 mAh, up to 10 h
in-ear, wireless, true wireless, Bluetooth v 5.3, active noise cancellation, voice assistant, waterproof, 20 – 40000 Hz, 16 Ohm, battery: 68 mAh, up to 9 h, with case + without ANC
in-ear, wireless, true wireless, Bluetooth v 5.4, AAC, LHDC, active noise cancellation, game mode, voice assistant, waterproof, 10 – 40000 Hz, battery: 58 mAh, up to 6 h, with case + 43 h without ANC
in-ear, wireless, true wireless, Bluetooth, AAC, LDAC, active noise cancellation, waterproof, 14 – 48000 Hz, battery: up to 4 h
in-ear, wireless, true wireless, Bluetooth, AAC, LDAC, active noise cancellation, voice assistant, waterproof, 20 – 40000 Hz, battery: up to 10 h, with case + 40 h
in-ear, wireless, true wireless, Bluetooth v 5.0, aptX, waterproof, 20 – 20000 Hz, 16 Ohm, battery: 60 mAh, up to 8 h
in-ear, wireless, true wireless, Bluetooth v 5.2, AAC, LDAC, active noise cancellation, waterproof, 14 – 48000 Hz, battery: 55 mAh, up to 4 h, with case + with noise reduction; 30 h – without noise reduction
in-ear, wireless, true wireless, 3.5 mm, Bluetooth v 5.3, AAC, aptX, active noise cancellation, waterproof, 20 – 20000 Hz, battery: 70 mAh, up to 8 h, with case + 16.5 hours of calls
in-ear, wireless, true wireless, Bluetooth v 5.0, AAC, aptX, active noise cancellation, waterproof, 20 – 20000 Hz, battery: up to 6 h, with case + 24 h
in-ear, wireless, true wireless, Bluetooth v 5.3, AAC, LDAC, active noise cancellation, voice assistant, waterproof, 20 – 40000 Hz, 16 Ohm, battery: 73 mAh, up to 9 h, with case + 28 h
