Test your love! How does it work? Each partner holds one end of the heart pcb and holds hands. Your love level is indicated by 10 flashing LEDs and a buzzing noise. The more LEDs flash and the faster the buzzer sounds, the more you like each other. [youtube]7qXZu0THBmM[/youtube]
Features:

1. power switch
2. love level indication:
   1. 10 colored LEDs (flashing)
   2. buzzer
3. adjust the trimmer to control the sensitivity

Specifications:

1. power supply: 9V battery (not incl.)
2. dimensions: 105 x 80 x 25mm / 4.1 x 3.1 x 0.98"

manual_mk149.pdf

module_diy_kit_guide.pdf