[Multi-Sensory Training]Engages visual, auditory, and tactile senses to enhance focus and cognitive development in children aged 4 and up. [Progressive Difficulty Levels]Features 7 stages of increasing challenge, promoting continuous learning and skill improvement. [Intelligent Feedback System]Provides interactive audio cues and error prompts, allowing for independent play without constant parental supervision. [Performance Tracking]Smart timing function records and displays answer times, encouraging children to improve their personal best scores. [Child-Safe Design]Constructed with rounded PVC cards that are odorless, durable, and gentle on young hands, ensuring a safe learning experience. [Eye-Friendly Display]Utilizes a clear, blue light-free display to protect children's eyesight during extended use. Specifications: Material: ABS+PVC card Battery: 3 x AA batteries (not included) Suitable age: 4 years old and above Product size: 132.7 (length) * 89.3 (width) * 23.1mm (height)