Instructions for use: 1 second 24-hour timer, with clock, memory function, countdown function. There is a sound, which can be turned on or off (that is, it can be muted).
Operation: Press the "Clear" key to switch the sound in the time mode. With shutdown function, in time mode, long press the "Start/Stop button" for 3 seconds to shut down, and press any key to turn on. The settings at shutdown will not be cleared. With daily alarm function, you can turn the alarm on and off.