Our head turning Red Sound Activated LED Badge is sure to bring light up your nighttime events. Each red LED badge measures 4.5" high by 3" wide and comes on a 38" white breakaway lanyard attached. Slide the switch up for sound activated lights. Slide the switch down for steady on lights. The red LED light at the top of the pendant,lights the badge through the night. Not only for parties but good for runners or dog walkers,and of course for decorations too! Sold by the piece,our Red Sound Activated LED Badge has 2 replaceable CR1220 batteries included and installed.