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Dolfi is a German brand with international attitude. We create elegant high-tech products making the lives of many different people around the globe easier and more fun. Our name is a tribute to dolphins who are the most advanced users of ultrasound.

We began our journey in 2014 when the very first prototypes of the portable ultrasonic washing device were developed in cooperation with Swiss engineering lab MPI Ultrasonics.

Our crowdfunding campaign launched for the Dolfi device in 2015 made a lot of headlines around the world. The project successfully raised over $1000 000 USD from supporters in over 90 countries, who helped to turn our prototype into a real manufactured product.



In that same year, we began strategic cooperation with the Centre for Ultrasonic Engineering (CUE) at Strathclyde University in Glasgow, UK. CUE is one of the world’s biggest hubs for ultrasonic engineering with amazing state of the art laboratories and over 50 academic researchers and scientists specializing in ultrasonic tech.

This access to highly skilled and experienced engineering resources is the base and driving force for innovative solutions implemented in Dolfi products.



The leap from crowdfunding to mass production has not been easy or smooth. It took almost three years of hard work with many setbacks and challenges until we have set up and scaled the manufacturing for Dolfi devices. We made it despite all the hurdles and obstacles, thank to the hard work of our team and strong support from our great partners.

That hard work did not go unrecognized. Each year, the world’s oldest independent design organization, iF International Forum Design GmbH, organizes iF DESIGN AWARD - the most prestigious world-renowned design prize. In 2019, Dolfi won the iF DESIGN AWARD in the Product category for the outstanding design of our innovative ultrasonic washing device.



You can learn more about how we came up with Dolfi's smooth organic pebble shape that intuitively communicates the product’s purpose and function here.

Our Team

Our Technology Partners



Our Address: Dolfi Sonic Int. Ltd. Enterprise Square Five, 38 Wang Chiu Road, Kowloon, Hong Kong

Join Us

Do you want to work with us? Just send your interest letter and resume/CV to jobs@dolfi.co and we’ll get back to you. We are always happy to welcome great people to join our international team working out of Europe, North America, and Asia.