Dongguan Electronics Factory
I had to search which companies manufacture this part for Uniden. A lot of sites that came up were websites selling this product and not a lot of product details. I did not find a strait up answer to my question and I had to sift through a lot of information, nonetheless, I found a common manufacturer of this product in china which is where other items from this phone were manufactured. I came to the conclusion that this product must have originated from Guangdong, China.
“Earphone (Receiver) ,” Mapping Our Devices, accessed October 28, 2020, http://maps.dgst101.net/items/show/178.