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Sennheiser PC-121

alaTest has collected and analyzed 55 reviews from magazines and websites. Reviewers are impressed by the value for money and usability. The comfort and sound also get good comments. There are some mixed views about the portability, while some have doubts about the design.

build quality, sound, comfort, usability, value for money


We analyzed user and expert ratings, product age and more factors. Compared to other Headsets the Sennheiser PC-121 is awarded an overall alaScore™ of 73/100 = Good quality.

Review analysis

(Based on 55 reviews)

Expert Reviews  

User Reviews  

Showing 21 review(s)

Expert Reviews User Reviews
Showing 1 - 10 of 21 Show Reviews: in English | in other languages (2)

Consumer review by:

Amazon review summary for Sennheiser PC-121


alaTest has collected and analyzed 18 user reviews of Sennheiser PC-121 from The average user rating for this product is 3.7/5, compared to an average user rating of 3.7/5 for other Headsets on

78% of the reviews on give this product a positive rating.

This summary is based on the product: Sennheiser PC121 In-Ear Mono-Aural Headset

Consumer review by:

Very good


I'm happy with this item. It works well, but perhaps the mic is a little /too/ sensitive. When I'm using voice-activated, as opposed to PTT, I have to turn the sensitivity down in my app to it's lowest setting in order to not pick up all background...

low profile ; good sound ; good mic ; in-line controls ; short mic

not wireless ;) ; mic is maybe a little too sensitive

Consumer review by:

senheiser head set


I wish senhesier manufactured a wireless version of this

Fantastic product in any field and level

Cable gets tangled

Consumer review by:

Worth the USB to Micro alone


Dont buy it for the mSD card, its hardly worth it anymore considering its size but the adapter is almost perfect.

I bought this 4 years ago from a different retailer when i saw the MicroSD to USB adapter just for that. Still works perfectly and I don't need to dedicate a drive bay to pointless flash media drives ill never use. Personally i find it invaluable as i...

4 gigs? Really ; Can be moderately difficult to get the mSD card back out of the USB stick if you dont keep decent length finger nails

Consumer review by:

Does its job well


Nifty USB adapter and size adapters, too!

Used this little card to upgrade my Sansa clip 4GB. Very simply upgraded capacity to 8GB


Consumer review by:

Great product!


Works like a champ for my new iphone 4s

Durable,Easy Controls,Lightweight

Consumer review by:

Great for any mobile device !


Best mounting device I have used yet. Very sturdy, simple to mount, and versatle for mounting on windshield or dashboard. The bracket arms open and adjust easily and with precision!

Durable,Easy Controls,Lightweight

Consumer review by:

WORKS GREAT!!!!!!!!!!!!


I've been looking for sometime to find the right mount for my blackberry an this one is it !!

Durable,Easy Controls

Consumer review by:

stuckUP - stuck on


It works. . .

Durable,Easy Controls,It works,Lightweight

Consumer review by:

Great mount for large or heavy devices


This mounting kit works great with the HTC Inspire 4G which is a heavy phone. I bought a different mounting kit and returned it because my new phone constantly fell out of it. This mount also holds very securely to the windshield and has yet to come...

Durable,Easy Controls,Lightweight

Product Specifications


Display: No
Integrated Amplifier: No
LCD Display: No
Mute Control: Yes
Noise Cancellation: No
Sound System:Mono
Switchbox from Telephone to Headset: No
Volume Control: Yes


Bluetooth: No
Connection:3.5 mm Plug

General Features

Compatibility:for 4 and more brands
Form factor:Over the Ear Headset
Product Type:Over the Ear Headset
Type:Over the Ear