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No processing or convenience fees are charged on any EMI transactions.
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Ideal for Casual
Ideal for the
2 Years of
aptX & AAC
7+13 Hours of
Android & iOS
Regardless of how your day goes, With Sennheiser CX 400 BT, the high-grade sound will always be with you to lift up your spirits. All thanks to the exclusive Sennheiser Audio Technology, the CX 400BT True wireless delivers excellent music listening experience. These earbuds make music listening more efficient than ever before with intuitive controls, strong battery backup and a pro comfort design. The CX 400BT is perfect for music enthusiasts who are passionate about sound.
Whether you like listening to slow soothing songs or thumping bass-heavy music, the bespoke drivers of the CX 400BT True Wireless are here to make music listening more enjoyable than ever before. These drivers deliver high-grade sound with thumping bass, natural mids and crystal clear treble. To get you more control over your music, you can tweak the built-in equalizer to elevate your music listening experience.
Experience the best sound and excellent music listening experience with the Sennheiser CX 400BT True Wireless across Android and iOS devices. These earbuds support a wide range of audio codecs like the SBC, AAC and AptX allowing you to enjoy the premium high-grade sound with any mobile device.
Keep yourself in the company of your music all the time with an overall battery life of 20 hours. The earbuds run for 7 hours with a single charge and they can extend to 13 more hours with the help of the stylish and sleek charging case. No matter where you go, do not miss on high-grade music.
The Sennheiser CX 400BT True Wireless has been designed for all-day listening comfort and to add more personality to your music listening. Wear these ergonomically-designed earbuds comfortably for hours and lose yourself to your favourite playlist, podcast or audiobook.
Connect your Sennheiser CX 400BT True Wireless to Sennheiser Smart Control app to customize your music, fine-tuning how music sounds. You can also change equalizer settings so that the audio adheres to your music taste. Adjust and define touch controls using the application. The transparent hearing settings let you decide the rate at which you let in ambient noise.
|DRIVER TYPE||7 mm|
|FREQUENCY RESPONSE||5 - 21,000 Hz|
|THD||<0,08% (1kHz / 94dB)|
|FREQUENCY RESPONSE (MICROPHONE)||100 Hz to 10 kHz|
|SPEAKER TYPE||Sennheiser 7mm dynamic driver|
|WIRELESS CONNECTIVITY||Bluetooth 5.1 compliant|
|BATTERY LIFE||Up to 7 hrs music playtime with earbuds
Up to 20 hrs music playtime with charging case
|CHARGING TIME||1.5 h for full charge / 10 min for 1 h playtime|
|BATTERY SPECIFICATION||Built-in Lithium-Ion rechargeable batteries|
|SUPPORTED PROFILES||A2DP, AVRCP, HSP, HFP|
|CODECS||SBC, AAC, aptX™|
|APP SUPPORT||Sennheiser Smart Control App for iOS™ and Android™|
|POWER SUPPLY||5 V⎓ 650 mA max|
|WEARING STYLE||In-ear (closed acoustics)|
|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|
|DIMENSIONS||59 x 33.8 x 42.3 mm (earbuds and charging case)|
|BOX CONTENTS||1. CX 400BT True Wireless Earbuds|
|2. Charging Case|
|3. Silicone ear adapter sets (XS, S, M, L)|
|4. USB-C Cable|
|5. Quick Guide & Safety Guide|
₹ 18,490/- ₹ 19,990/-
₹ 17,198/- ₹ 21,998/-
₹ 19,900/- ₹ 22,900/-
|Bluetooth Codecs||aptX, AAC & SBC||AAC & SBC||AAC & SBC||aptX, AAC & SBC|
|Earbuds Battery||7 Hours||6 Hours||7.5 Hours||8 Hours|
|Charging Case Battery||13 Hours||18 Hours||20.5 Hours||24 Hours|
|Voice Assistant||Siri/Google Assistant||Alexa, Siri & Google Assistant||Alexa, Siri & Google Assistant||Siri/Google Assistant|
|Ambient Sound Transparency|
|Eartips||3x Pairs Silicone Eargels||6x Pairs Silicone Ear Tips||3x Pairs Silicone Eargels||3x Pairs, Silicone Ear Tips|
"It is nicely balanced with a respectably good detail and punchy, well-defined bass along with natural-sounding mids. They have that refined quality that brings out the nuance in your music."
"A new benchmark for true wireless earbuds, the WF-1000XM3s combine effective active noise-cancelling with a real sense of musicality. Sony raises the bar for true wireless earbuds."
Don't sweat it, this Sennheiser CX 400BT True Wireless comes with a 2 year warranty from Sennheiser that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about Sennheiser's warranty in India.
"It is nicely balanced with a respectably good detail and punchy, well-defined bass along with natural-sounding mids. They have that refined quality that brings out the nuance in your music."Read More
"With Bluetooth version 5.1 the sennheiser - CX400BT True Wireless are able to stream Hi-Res Audio files from the likes of Primephonic and Tidal without problems."Read More
"Sennheiser's CX 400BT True Wireless retain so much of what makes the company's sound great. If sound is what you're after, the Sennheiser's CX 400BT True Wireless won't disappoint."Read More
"The sound quality is quite good on this new set of earbuds. There’s outstanding clarity in the details of most genres and a deep, warm sound stage that is simply a joy to listen to."Read More
"Sure enough, the CX 400BT can stand toe-to-toe with the best true wireless earbuds, and when paired with an aptX-capable sound source, they’re very hard to beat."Read More
"My time using the CX 400BT was very enjoyable. I appreciated all the customizable options and warm sound signature, as well as their flawless connection and accessibility."Read More
"The CX 400 BT is a truly fantastic sounding wireless earbud, providing the excellence in engineering and sound reproduction that you would come to expect from the good folks over at Sennheiser."Read More