M-Series Headphones

Name	Features	Lifetime
CART	The association with your shopping cart.	1 Year
CATEGORY_INFO	Allows pages to be displayed more quickly.	1 Year
COMPARE	The items that you have in the Compare Products list.	1 Year
CUSTOMER	An encrypted version of your customer id.	1 Year
CUSTOMER_AUTH	An indicator if you are signed into the store.	1 Year
CUSTOMER_INFO	An encrypted version of the customer group you belong to.	1 Year
USER_ALLOWED_SAVE_COOKIE	Saves cookie consent status	1 Year
CLID	Date user first seen on Clarity	1 Year
PRODUCT_DATA_STORAGE	-	1 Day
RECENTLY_COMPARED_PRODUCT	-	1 Day
RECENTLY_COMPARED_PRODUCT_PREVIOUS	-	1 Day
RECENTLY_VIEWED_PRODUCT	-	1 Day
RECENTLY_VIEWED_PRODUCT_PREVIOUS	-	1 Day
PRIVATE_CONTENT_VERSION	-	1 Day
SECTION_DATA_IDS	-	1 Day
PHPSESSID	-	1 Day
AWSALB	Help with Load Balancing zopim requests	7 Days
AWSALBCORS	Help with Load Balancing zopim requests	7 Days
MR	Indicates whether to refresh MUID.	7 Days
SRM_B	Search Tracking by Bing.	1 Year
X-MAGENTO-VARY	-	1 Day

Name	Features	Lifetime
RECENTLYCOMPARED	The items you recently compared.	1 Year
STF	Information on products you emailed to friends.	1 Year
STORE	The store view or language you have selected.	1 Year
VIEWED_PRODUCT_IDS	The products that you recently looked at.	1 Year
WISHLIST	An encrypted list of products added to your wish list.	1 Year
WISHLIST_CNT	The number of items in your wish list.	1 Year
MAGE-CACHE-SESSID	Website browser session ID that will get cached for 24hours (by default) for the user browsing experience.	1 Day
MAGE-CACHE-STORAGE	-	1 Day
MAGE-CACHE-STORAGE-SECTION-INVALIDATION	-	1 Day
MAGE-MESSAGES		1 Day

Name	Features	Lifetime
CUSTOMER_SEGMENT_IDS	Stores your Customer Segment ID	1 Year
EXTERNAL_NO_CACHE	A flag that, indicates whether caching is on or off.	1 Year
FRONTEND	Your session ID on the server.	1 Year
GUEST-VIEW	Allows guests to edit their orders.	1 Year
LAST_CATEGORY	The last category you visited.	1 Year
LAST_PRODUCT	The last product you looked at.	1 Year
NEWMESSAGE	Indicates whether a new message has been received.	1 Year
NO_CACHE	Indicates whether it is allowed to use cache.	1 Year
PERSISTENT_SHOPPING_CART	A link to information about your cart and viewing history if you have asked the site.	1 Year
MUID	unique web browser id used to track data from Microsoft Bing and its services/functions connected such as Clarity.ms	1 Year
_CLCK	unique user ID generated by Clarity	7 Days
_CLSK	page view recording set by Microsoft Clarity	1 Day
ANONCHK	Indicates whether MUID is transferred to ANID, a cookie used for advertising. Clarity doesn't use ANID and so this is always set to 0.	1 Day
AT_GEOLOCATOR_STORE	Store Selection	1 Year
__PR.DS5	Unique User ID set by Power Reviews	30 Days

M-Series

Uncompromising High-Fidelity Audio

Praised by top audio engineers and audio reviewers year after year, the M-Series has established itself as the headphones for those who put audio first.

The Most Trusted Studio Headphones In the Industry

Born In the Studio

Engineers and pro audio reviewers agree: the M-Series is the choice for pure professional performance.

Expect More from Your Wireless

Legendary Studio Sound

The ATH-M50xBT2 headphones deliver the legendary M50x studio sound – with exceptional clarity and deep, accurate bass response – for an exhilarating wireless listening experience.

ATH-M50XBT2

Ice Blue

ATH-M50XBT2

Deep Sea

ATH-M50XBT2

Black

ATH-M50xBT Overview | Wireless ATH-M50x Headphones from Audio-Technica