DIY Single Chip Microcomputer Laser Harp Kit Electronic Piano Music Box

Description: ? There are a total of 7 strings. When the string is cut, the buzzer sends out the corresponding sound level. When the string is cut, the LED of the string is lit up. There are a total of 7 LED. Play two pieces of music stored by buttons. Switch middle and high bass. ? Package Included:

1 x?DIY Single Chip Microcomputer Laser Harp Kit