Luminous cubes with integrated LED beads flash in three colors: blue, green, and red. USB rechargeable, each cube has a built-in board, and the charging case lets you recharge the cubes via USB power supply, mobile power bank, or PC. Sensitive motion sensor: shake the cube by hand and it will flash for about 10 seconds. The latest sensor makes it easy to trigger the glow. Gift set for the whole family: designed for fun playtime with friends and family. Perfect for table games and showing off your playing skills with these dice. Durable alloy material: built to last for years with a long service life. Safe to use, rustproof, and designed for reliable storage. Use scenarios: - During tabletop RPG sessions (such as D&D) to enhance atmosphere and provide light-up cues. - At family or friends game nights to add visual flair to table games. - As a gift for gamers, clubs, or gaming groups who appreciate functional, eye-catching dice.