The document outlines a marketing campaign by Mimi Hearing Technologies to promote hearing health on World Hearing Day. The campaign involved partnering with Germany's largest health insurer for a pilot program and getting relevant partners to advertise Mimi's hearing test. On World Hearing Day, the campaign achieved over 50 social media posts by 22 partners reaching 700k people in Germany, 433 international media clips and 126 backlinks. It drove 45k euros in spending and over 95k downloads in March, with 52k downloads in Germany at a cost of 0.87 euros per download. While successful, the campaign was not easily scalable and PR activities did not directly drive downloads. Partner promotions were found to be very effective multipliers.