(영국 바이어가 당사의 '음핑고 공명종 Reso-bell Large 및 Small 각2ea씩을  

구매한후에 아주 흡족해하며 아래 사용후기를 보내왔고 추가구매 예정입니다.     

허락을 얻어 여기에 옮겨싣습니다.)  

"I am very happy by the way with my Mpingo reso-Bell and I just cannot  

understand how something so small can influence the sound from  

my floorstanders but it does. 

It must have taken a lot of research to develop them into viable  

products so I applaud whoever thought of the idea. 

Best regards, John. from UK 2015.1.31."