Introduction - If you have any usage issues, please Google them yourself
When CLK12MHZ input 12MH, in clk4hz input 4hz, the speaker will play the first song, " life have you" , and then after 1 and button 2 buttons, you can select the other three songs, such as " Invisible Wings" and at the same time there led display high tone, a digital display when playing the first few tones, a digital display at the moment playing the first few songs