This is the 19757th most frequent Korean word.
에스아르
"에스아르" (SR) refers to "social responsibility."
Here, '에스아르' refers to a name or brand, indicating it's being used as a proper noun in the context of electronics.
에스아르는 가전제품의 브랜드입니다.
SR is a brand of electronics.
In this sentence, '에스아르' is connected to '제품', signifying it functions as a modifier for products associated with the SR brand.
에스아르 제품은 품질이 좋습니다.
SR products are of good quality.
The term '에스아르' is again indicative of the brand, highlighting its association with a specific product, '스피커'.