Specification:? 100% brand new? LED light glows and flashes in darkness.? Easy to wear and remove.? Perfect for parties， night activities， concert and all kinds of night life fun.? Voice controlled design: DB is higher， the light of the led bracelet will be brighter.? With switch to power off when not use.? Powered by: 2pcs CR2016 button battery (included)? Material: silicone + PS? Bracelet circumference: approx 25cm， one size fits most? Bracelet width: approx 2cm? 9 color for choosing: blue， yellow， pink， red， green， orange， white， purple， blackPackage included:? 1pc x LED BraceletNote:? Please allow 1-2cm size error due to manual measurement.? Due to the difference between different monitors， the picture may not reflect the actual color of the item.