The Term gigafactory is doing the heavy lifting in this sentence. There are a lot of smaller scale operations that do design, development and assembly in Europe

The Term gigafactory is doing the heavy lifting in this sentence. There are a lot of smaller scale operations that do design, development and assembly in Europe like Varta Microbattery[1]. They provide a lot of the batteries used in the modern wireless earbuds like the airpods pro[2] and also some of the Samsung galaxy buds[3]. [1]https://en.wikipedia.org/wiki/VARTA https://en.wikipedia.org/wiki/VARTA [2]https://www.ifixit.com/Teardown/AirPods+Pro+Teardown/127551 https://www.ifixit.com/Teardown/AirPods+Pro+Teardown/127551 look at step 8 [3]mentioned in the same article and step as the Airpods above