Material: LED Size: 22*10*10cm Battery size: 2 hours of charging, 15 hours of use Color: As shown in the picture 1. Reaction training lights specifically designed for children to enhance hand-eye coordination and quick reaction skills, suitable for training in various sports such as football and basketball. 2. LED light cues combined with audio enhance the fun of training, stimulate children's interest in sports, and improve training effectiveness. 3. With a portable design and simple operation, it is suitable for use in various indoor and outdoor scenarios and serves as an ideal teaching aid for schools, training institutions, and households. 4. Supports multi-mode training, allowing for free adjustment of reaction time and training difficulty to meet the developmental needs of children of different ages. 5. Made of environmentally friendly ABS material, it is safe, harmless, and shock-resistant, ensuring the safety of children during sports activities. The package includes:1set Children's Reaction Training Light