Emotional Heart Soldering Practice Kit (Beginner Skill Level)Note: Assembly with a soldering iron is required. Solder and soldering iron are not included. This beginner soldering kit contains a heart shaped PCB and 12 red LEDs that flash in a random pattern The user can touch the board on the center of the heart to increase the flashing rate of the LEDs One assembled, you can use the project to play a game; simulate the finger of a girl touching the heart of a boy and see the flashing rate of the LEDs speed up!