Earin AB

Earin AB is a private Swedish company founded in 2014 and headquartered in Malmö. The company operates as a product development firm focused on miniaturized audio solutions and is part of the Qamcom Group. PitchBook lists the company as having 12 employees.

Earin is known for developing and manufacturing wireless earbuds and was an early pioneer in the "true wireless" category. After a successful Kickstarter campaign, the company launched its first product, the Earin M-1, in 2015, followed by the M-2 and A-3 models. The company's products have been recognized for their compact, minimalist Scandinavian design. While Earin previously sold its products directly to consumers, its website now emphasizes its role as a "product development company," offering services such as custom speaker and algorithm development for clients.

The company's patent litigation posture is that of a patent enforcer. Earin has filed at least six lawsuits as a plaintiff against competitors in the wireless headphone market and has not been tracked as a defendant. This offensive litigation strategy began after a 2022 announcement that Vitek IP, a patent broker, was exclusively representing Earin's patent portfolio for sale or license. The portfolio was described as covering "foundational wireless earbud technology."

The lawsuits target major audio electronics companies, including Skullcandy, Inc., Sennheiser Electronic Corporation, and Audio-Technica U.S., Inc. The cases have been filed in the U.S. District Courts for the District of Delaware and the Northern District of Ohio. Filings in the Skullcandy case show that Earin is asserting patents such as U.S. Patent No. 9,402,120, which relates to the construction and operation of wireless earbuds.