It is the logo of Motorola. The icon is as follows:

Motorola Corporation: formerly known as Galvin Manufacturing Corporation, was founded in 1928. In 1947, the name was changed to Motorola and it was used as a trademark from the 1930s. Headquartered in Schaumburg, Illinois, USA, a suburb of Chicago. One of the world's Fortune 100 companies, it is a global leader in chip manufacturing and electronic communications.