Material: soft plastic
Battery: 3 button batteries， available for about 8-20 hours，
Weight: about 5 g / A
Each brooch has alternating red and blue lights flashing light


color1

color2

color3

color4

color5

color6

color7

color8

color9


src="https://img.alicdn.com/imgextra/i4/735980882/TB2HGtpaqi5V1BjSspfXXapiXXa_!!735980882.jpg" class="img-ks-lazyload"!#!gt!*!