Meizu mBack is an interactive method for Android smartphones. It was released by Meizu at the Meizu Note2 conference on June 2, 2015. The mBack physical Home button based on the new waist-round button design language can achieve Touch to return, press to return to the desktop, and combine different operations. This is mBack.
According to the latest patent announcement from the State Intellectual Property Office, the patent for "User Equipment and Its Operation and Control Method" applied by Meizu Technology (China) Co., Ltd. on June 28, 2012 has been approved, which is the usual Said mBack, the category is "Invention Patent".