1. Role play and experience the fun of supermarket cashiers 2. DIY assembly, improve children's hands-on ability 3. Parent-child interaction to cultivate children's hobbies 4. The product does not contain AA batteries. If you need to use your own AA battery 8888a-5: cash register with calculation, scan and sound functions Silver machine specifications: 16 × ten × 13CM 8888a-3: Cash register with refrigerator + food (cash register with calculation, scan and sound functions) Silver machine specification: 16 × ten × 13cm refrigerator specification: 17 × seven × 21CM.8888a-7: Cash register with ice cream table (cash register with calculation, sound function, ice cream table with small and light music function) Cash register specification: 16 × ten × 13cm Ice cream machine specification: 23 × twelve points seven × 23CM. Recommend Age : 7-12y