This provides for a simple testing setup during the knock creation mode, and a fast resetting option for knock sequence listen mode.
这样就提供了在敲打创建模式下进行简单测试设置的功能，并为敲打序列的监听模式提供了一个快速重置选项。
2
Manufacturers of counterfeit products often use inferior materials and these "knock-offs" consistently fail independent certification testing from organizations such as Underwriters Laboratories (UL).