SENNHEISER CX400 BT True Wireless


CX400 BT True Wireless


CX400 BT True Wireless



CX400 BT True Wireless Product Information

  • Customizable Touch Controls

  • Built-in Equalizer

  • 7mm dynamic driver

  • 20 hour battery life

  • Sennheiser – the name stands for the establishment and development of trends. Its achievements have won numerous international awards: two innovation prizes of German industry, the “ Technical Oscar ’ (The Scientific and Engineering Award), a Grammy and the most significant television prize in the USA, the Emmy Award.

  • The trailblazing ideas of developers have made Sennheiser products famous throughout the world, and repeatedly met with an enthusiastic response from audio aficionados.

Technical Specification
  • Dimensions:59 x 33.8 x 42.3 mm (earbuds and charging case)

  • Weight:49g (both earbuds and charging case) 6g (single earbud) 37g (charging case)

  • Package dimensions:(L x B x H) 170 x 115 x 47 mm

  • THD, total harmonic distortion:0,08% (1kHz / 94dB)

  • USB Standard:USB-C

  • Frequency response (Microphone):100 Hz to 10 kHz

  • Bluetooth Version:Bluetooth 5.1 compliant

  • Supported Profiles:A2DP, AVRCP, HSP, HFP

  • Frequency response:5 - 21,000 Hz

  • Ear coupling:In-ear, closed acoustics

  • Charging time:1.5 h for full charge / 10 min for 1 h playtime

  • Power supply:5 V⎓ 650 mA max

  • Battery Specification:Built-in Lithium-Ion rechargeable batteries

  • Codecs:SBC, AAC, aptX™

  • Battery time:Up to 7 hrs music playtime with earbuds Up to 20 hrs music playtime with charging case

  • App support:Sennheiser Smart Control App for iOS™ and Android™

  • Speaker type:Sennheiser 7mm dynamic driver

In the Package
  • CX 400BT x 1

  • Silicone ear adapter sets (in size (XS/S/M/L) x 1

  • Charging case x 1

  • USB-C charging cable x 1

  • Manuals (Safety Guide & Quick Guide) x 1

  • 24 months

^Any items in product photos and videos but not stated in “In the Package” are for illustration only.

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