CX400BT True Wireless Earbuds

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Product Description

Your day-to-day may change, but your enjoyment of superior sound
won’t. Powered by Sennheiser’s leading audio technology, the CX 400BT True Wireless gives you total control over an exceptional sound experience. With intuitive customizable controls, long-lasting battery life and a design made for all-day comfort, they are the ideal, uncompromising choice for people that are
passionate about great sound.

Immerse yourself in amazing sound quality thanks to Sennheiser’s unique 7mm dynamic audio drivers and personalize your audio experience with the built-in equalizer and the Sennheiser Smart Control app.

Manage your music, make calls or trigger the voice assistant with
customizable touch-sensitive technology built into both earbuds. Enjoy outstanding sound quality no matter your mobile device with a wide range of audio codec support, including AAC, aptX and SBC.

Experience non-stop play time with a 20 hours of battery life – 7 hours on a single charge and a further 13 hours via the charging case. Dive into your favorite music for as long as you like with an ergonomic design made for all-day wearing.

Product Details
  • Materials
    Metal, Plastic
  • OriginChina

— Warranty: Manufacturer's 2 Year
— Unique 7mm Dynamic Audio Drivers With Built-In Equalizer
— Sound Customization Via Smart Control App
— Voice Assistant Compatible
— Touch-Sensitive Controls On Both Earbuds
— Wide-Ranging Codec Support
— Non-Stop Play Time With Up To 20 Hours of Battery Life (7 Hours Per Charge Plus 13 Hours Via The Charging Case)

Technical Specifications
— Ear Coupling: Ear Canal
— Connectivity: Bluetooth 5.1 Compliant, Class 1, 10 mW (Max)
— Supported Profiles: A2DP, AVRCP, HSP, HFP
— Supported Codecs: SBC, AAC, aptX™
— Speaker Principle: Dynamic
— Speaker Size: 7mm Diameter
— Speaker Frequency Range: 5 Hz-21kHz
— Speaker Sensitivity: 107 dB SPL (1 kHz/1mW)
— Speaker THD: <0.08% (1kHz/94dB)
— Passive Noice Cancellation
— Mic Principle: MEMS
— Mic Frequency Range: 100 Hz-10 kHz
— Mic Pick-Up Pattern: 2 Mic Pick-Up For Ambient Noise Reduction
— Battery Lifespan: Up To 7 Hours Play Time Per Charge, 20 Hours Overall With Charging Case
— Charging Time: Approx. 1.5 Hours For Full Charge
— Battery Type: Built-In Lithium-Ion Rechargeable Batteries
— L/R Earbud: 55mAh
— Charging Case: 420 mAh
— Power Supply: 5V, 650 mA Max
— USB Charging Via USB-C Socket At Charging Case
— Weight: 0.2 oz (Single Earbud); 1.3 oz (Case)

— CX 400BT True Wireless Earbuds
— Charging Case
— USB-C Charging Cable
— Silicone Ear Adapter Sets (XS/S/M/L)

Can either side be worn by itself to play music?

Yes, they can be worn individually.

Shipping Information
*Continental US only. Surcharges apply to HI, AK and Canada
  • Shipping Availability
    United States
  • Shipping Policy
    FREE Standard Shipping
  • Handling Surcharges
    $0.00 first item / $0.00 each additional ?
    This is for items that require some kind of special care, maybe because the item is too large and/or the item is coming internationally. These charges are only used to cover our own shipping costs and we keep these as low as possible.
  • Ship In
    2-3 weeks
  • Return Policy
    Final sale, not eligible for return or cancellation