... time Innovated CD-CU-Clock timer function description1,Function 2 ------ Countdown clockCan set current time and countdown target ... ,.D keys to set time as follows:1,Press button C for 3 seconds to go to modulation states ( ... for counting finger automatically.3,Press button C for one time( less than 3 seconds) to choice days ... 30 seonds, it will exit automatically! 1.8-inch green color LED Countdown Timer