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