Features ⌠Non-rechargeable ⌠The dice can keep glowing for 8 seconds and cannot be charged, can toss about 2500 times. Note: Dice box is not included. ⌠Rechargeable⌠Charging time: 2 hours The light-emitting dice can be used continuously for about 6 hours after fully charging. After a full charge, the green light turns on. The dice can keep glowing for 8 seconds at a time. You can charge the electric dice via power adapter/ power bank/ PC, the dice never snub out. Charging cable is included. USB interface is Type C interface. âŚGift idea⌠You canshake the electric dices via hands to light them up about 8s.Definitely eye-catching, especially in the dark! It is a perfect dice gift for your friends and family. Dice goblins will definitely love a new electronic dice set! Specifications Dice size: Notes