Customer Ratings & Reviews

Sound great... only complaint is the voice lags watching some videos.

Bought for brother and he like it very much. Missing some key features for over $100 earbuds

These earbuds surprise me every time I listen to music with them. The overall sound clarity and audio fidelity is beyond what I ever expected in an ear bud. If you can do without Active Noise Cancellation and moisture resistance these are great earbuds. Sound Reproduction: These earbuds support SBC, AAC and aptX codecs. Since my phone supports aptX I was thrilled to get the higher quality music streamed to my earbuds. Sennheiser uses 7mm drivers in their high end earbuds including these CX 400s and they deliver crisp clear music. Although the Sennheiser Smart Control App includes a minimal equalizer discussed below I found that the equalizer app on my phone allowed me to really get the best sound quality out the earbuds. By adding some bass boost to the music I was amazed at how responsive the earbuds were. The bass was smooth and not muddled so a drum beat sounded solid and not distorted at an enjoyable volume level. Set Up and Operation: Setting up these earbuds is extremely simple. They pair quickly via Bluetooth and once you have them paired they immediately connect when you remove them from the charging case. Because the Right earbud is the primary Bluetooth connection it is the only earbud that can be used singularly. The earbuds last about 7 hours per charge and using the base to recharge you can get about 20 hours total. The charging case has a single multicolor led to indicate the battery level but I found this to be less helpful than other charging cases that have four or five LEDs to indicate the battery level. The case uses a USB-C port for recharging and a cable is supplied. The earbuds use touch sensitive sensors to perform the typical functions like volume, play control and call control. I found the touch sensors to be very easy to use and they are sensitive without being overly problematic. The earbuds have the option to give you an audio beep when a sensor is touched and I found this to be very helpful for verifying that I was touching the earbuds sensor. Once I turned on the Alexa app on my phone I was able to fully access all my Alexa commands and functions via the earbuds. I found this very useful when streaming my music, a single touch to the earbud and I had Alexa managing my playlist. Taking calls via the earbuds were straight forward, one touch to the right earbud and I was in the call. The overall sound quality was great and the callers all said I sounded good from their perspective. Smart Control Application: The app was easy to install and it quickly found the earbuds to control. The equalizer included with the app, while appealing visually didn’t deliver the same control that a quality equalizer app can so I found it not very useful. The button customization however is one of the major benefits of the app. Using the app you can select how the sensors on each earbud responds to a touch making the control of the earbuds as simple or as complex as you like. The one downside is that you cannot add a Mute function to the phone call control. Final Thoughts: - The earbuds do not have any type of IP rating for moisture or dust but because of the way they sit in your ear I would not recommend these for use in a gym or high movement activity. - The earbuds do not have Active Noise Cancellation. - The earbuds are large so they aren’t the most discreet earbuds. Also because of their larger size some may find them not as comfortable to wear over long periods. - The earbuds do not announce the battery level when powered on which is disappointing. The app and charging case do show the battery level but you have to use them to find that out. - Lack of a Mute feature while in a phone call.

My favorite of all the wireless ear buds. Sentitive to the touch thiugh. Have problems connecting it to my iPhone

For the price these are an absolute steal at $99. I had a pair of the $299 Sennheisers that were stolen. These are easily as good...

no bad - very good if you can find them for the right price.

Great Value for the money!! These were picked for some employee spiffs. They were the first to go. A favorite among the crew.

Picked these up for 99.99 on sale. Fantastic sound especially with android phone and android car play. Love sennheiser products

Great wireless ear buds would be better if more comfortable. All in all perfect for me

worth the money easy to use blue tooth sounds okay not that great in my opinion ,but worth the money

Smooth transaction, these ear buds were at a great price. The picking process curbside is very efficient.

I gave them a try because of the reputation but they didn't hold up well sound wise compared to Sony or beats. If you love music and enjoy good sounds, I wouldn't recommend it.

Great product at a fantastic price! Sound is fantastic

Very difficult for my husband to keep in ear. Phone calls are impossible as caller cannot hear him speaking. Controls are lousy, sometimes one tap or two works, other times not. Volume control is ok. Bass is non existent and using the app did not make a difference. Bluetooth connectivity is hit and miss. We have other Sennheiser products that are decent, this one is headed for the trash.

Nice earbuds while they lasted, stopped working after 8 months. The controls can be overly sensitive. Hopefully they can be repaired or replaced

I love it , perfect sound, i will buy it again and gilf it for my son

Amazing quality with durable design. The microphone quality could be better.

my son got theses as a gift and loves them. He says they are very easy to use.

Always wanted sennhaiser headphones. These are great! No complaints so far.

Love this old school brand. Purchased these $70 off sale. Great deal.