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Sennheiser CX-400BT TWS Earbuds (BT 5.1, APT-X) for $89.99 + Free Shipping with Prime

$89.99
$199.95
+16 Deal Score
13,683 Views
Great pair of TWS earbuds!
Amazon link [amazon.com]
Same price on Walmart (just on the white color): Walmart link [walmart.com]

From Product description:
+ Up to 20 hours of music playtime
+ Approx. 1.5 hours charging time
+ Bluetooth 5.1​
+ Wide range of Bluetooth audio codec support (SBC, AAC & aptX codecs support)
+ Customizable ​touch controls

My thoughts
I got these last year at $129 before tax - excellent sound quality and clear calls - use them for work meetings and folks hear me loud and clear!
Subjectively, these are also the most comfortable ones from the many I've tried and returned (galaxy buds plus, galaxy buds live, Bose sport earbuds, jabras)

Couple of things to note -
Pros
Has equalizer within app
Wide codec support
USB-C charging
Usable touch controls
Solid connection

Cons
No multipoint, but switching devices has been pretty easy with app. (The product page does say multipoint is available, but I've had trouble with this and I stuck to using the app for this)
No transparency mode, won't recommend for biking/running therefore
No ANC (but good noise isolation)
No IP or IPX rating of any kind (thanks @GimmeYoTots)

https://smile.amazon.com/gp/produ...8&th=1
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Deal
Score
+16
13,683 Views
$89.99
$199.95

Price Intelligence

Model: Sennheiser CX 400BT True Wireless Earbuds - Bluetooth In-Ear Headphones for Music and Calls - with Noise Cancellation and Customizable Touch Controls, Black

Current Prices

Sort: Lowest to Highest | Last Updated 5/4/2024, 11:58 PM
Sold By Sale Price
Amazon$149.95
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Joined Jan 2008
L4: Apprentice
> bubble2 447 Posts
102 Reputation
blueis300
08-31-2021 at 06:30 PM.
08-31-2021 at 06:30 PM.
I personally prefer CX over CX 400BT.
CX came out less than 2 months ago. It has better features like you can use each ear bud independently, also comes with IPX rating, 2 hours longer battery life at 9 hours, and CX has better bass control than the 400BT with more woomp.
Thus I love CX for my workout with more enjoyable sound with water proof which CX 400BT is lacking.
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Joined May 2008
L10: Grand Master
> bubble2 14,000 Posts
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max1001
08-31-2021 at 06:35 PM.
08-31-2021 at 06:35 PM.
No ANC for this price point?
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Joined Dec 2013
L3: Novice
> bubble2 282 Posts
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newgun
08-31-2021 at 07:03 PM.
08-31-2021 at 07:03 PM.
Sennheiser Outlet Official renewed is $69.95

https://www.amazon.com/dp/B08V36V...dg_tit_rfb
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Joined Dec 2006
L3: Novice
> bubble2 103 Posts
35 Reputation
root4d20car
08-31-2021 at 07:04 PM.
08-31-2021 at 07:04 PM.
Quote from Ttmgoose :
Can you use one earbud at a time?

Signed, VVGogh😉
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Joined Nov 2011
L4: Apprentice
> bubble2 339 Posts
41 Reputation
Yadoo
08-31-2021 at 07:26 PM.
08-31-2021 at 07:26 PM.
Quote from newgun :
Sennheiser Outlet Official renewed is $69.95

https://www.amazon.com/dp/B08V36V...dg_tit_rfb

Sennheiser Outlet Official has only 67% positive ratings on Amazon. Always lookup seller reviews on Amazon.
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Joined Sep 2016
L6: Expert
> bubble2 1,621 Posts
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stoned.monkey
08-31-2021 at 07:49 PM.
08-31-2021 at 07:49 PM.
Vs the Sony wf-100mx4? While they sound good, the bass is rather weak imo. At least compared to my 75t. But, the battery is much better. Still trying to find my favorite.
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Joined Nov 2011
L4: Apprentice
> bubble2 339 Posts
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Yadoo
08-31-2021 at 07:59 PM.
08-31-2021 at 07:59 PM.
Quote from stoned.monkey :
Vs the Sony wf-100mx4? While they sound good, the bass is rather weak imo. At least compared to my 75t. But, the battery is much better. Still trying to find my favorite.

The Sennheiser CX 400BT have a very balanced/flat sound out of the box. App has an equalizer, but even with bass jacked all the way up, these are not heavy on the bass. So, if bass is your thing, these might not be for you. I have Jabras for working out and these for everything else.
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Last edited by Yadoo August 31, 2021 at 08:02 PM.

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Joined Sep 2013
New User
> bubble2 14 Posts
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JasonL7630
08-31-2021 at 09:37 PM.
08-31-2021 at 09:37 PM.
I bought a pair of this few months ago for $99, and returned it for a pair of air pod pro. Sound wise, they are fine, not the best, pretty flat. Not impressed either. However, the app and interface are horrible!
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Joined Jul 2009
L7: Teacher
> bubble2 2,039 Posts
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megazone23
09-01-2021 at 12:38 AM.
09-01-2021 at 12:38 AM.
Quote from Yadoo :
Sennheiser Outlet Official has only 67% positive ratings on Amazon. Always lookup seller reviews on Amazon.
You have 90 days on renewed to return rather than 30 days regular.
And seller rating is 100% last 90 days, 67% is for 12 months.
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Joined Jul 2009
L7: Teacher
> bubble2 2,039 Posts
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megazone23
09-01-2021 at 12:43 AM.
09-01-2021 at 12:43 AM.
Quote from Yadoo :
The Sennheiser CX 400BT have a very balanced/flat sound out of the box. App has an equalizer, but even with bass jacked all the way up, these are not heavy on the bass. So, if bass is your thing, these might not be for you. I have Jabras for working out and these for everything else.
Do the earbuds remember the equalizer app settings? or the app has to be running to have settings effective?
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Joined Jun 2019
L99: All Madden
> bubble2 3,044 Posts
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DoctorLecter
09-01-2021 at 08:23 AM.
09-01-2021 at 08:23 AM.
Dead...?
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Joined Aug 2014
L5: Journeyman
> bubble2 554 Posts
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simonatl
09-02-2021 at 12:22 PM.
09-02-2021 at 12:22 PM.
repped!!
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Joined Dec 2013
L3: Novice
> bubble2 282 Posts
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newgun
09-11-2021 at 10:14 AM.
09-11-2021 at 10:14 AM.
Live again

https://smile.amazon.com/exec/obi...B08DCLRYWB

Looks like they just increased the price for the black one
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Last edited by newgun September 11, 2021 at 10:17 AM.
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