1. Children 0-8 years old zero basic thinking training, insert card recognition ? 2. Voice interaction, encourage correct answers, give tips and guide to solve problems, no longer need to do logical thinking training with mom ? 3. Touch screen answer, move little finger to press the screen, train children's hand and brain coordination ability ? 4. Age by stage game, difficulty from shallow to deep, step by step learning stage ? 5. Dry battery storage: stable and portable ? 6. 0.2 second quick reading card, put and learn, easy to operate ? 7. Massive expansion of knowledge, children's rhymes interactive game cards, rich and diverse early education content can continue to add content cards ?