荷兰特温特大学的汉斯伊莱亚斯燈德布里和德国音频公司的森海泽，一起研制出一种命名为麦克弗洛的小到几乎看不见的拾音器，它以独特的方式检拾声音。传统的拾音器使用一种膜或隔膜，把声波转换成电信号。由于隔膜需要固定，因此不能准确地重视那些令它们引起振动的声波。同时 Hans Elias Light of Debrecen at the University of Twente in the Netherlands and Sennheiser, a German audio company, worked together to develop a small to almost invisible pickup called McFarro that uniquely seized Pick up the sound. Traditional pickups use a membrane or diaphragm to convert sound waves into electrical signals. Since the membranes need to be fixed, the sound waves that cause them to vibrate can not be precisely taken into account. Simultaneously