WowWee - R.E.V. Cars (2-Pack) - Multi Product Details Key Specs App-Controlled: Yes Warranty Parts: 90 days Warranty Labor: 90 days limited Features Vehicle Type: Car Certifications & Listings Choking Hazard Warning: No General Recommended Minimum Age: 0 years General Model Number: 0420 General Color Category: Multi General Color: Multi Power Battery Size: Other Power Batteries Included: Yes Other Product Name: R.E.V. Cars (2-Pack) Other Brand: WowWee Other UPC: 771171104209 Let your child enjoy realistic vehicular combat. Each car mimics real-world physics, reacting when hit as though the impact were real. If hit from the back, the cars will lunge forward, and if hit from the side, they'll veer off course. Allows the cars to track each other from up to 16.4' away. When controlled by A.I. (artificial intelligence), the cars operate themselves, driving and fighting to win. Enables your child to play and compete in real-world battles and challenges. This 2-pack of WowWee R.E.V. 0420 cars operates using A.I. (artificial intelligence) and BeaconSense technology for realistic vehicular combat. A downloadable app allows your child to take part in real-world battles and challenges.