Double Player Battle : The RC Battle Robots for parent child interaction, these robots offer a fun and competitive way to playMaterials:Made from pp and electronic components, these Robot Combats Set ensures they are crash resistant and sturdy, providing long time entertainmentFunctions:The Intelligent Robots can move forward, backward, rotate left or right, and feature exciting functions like boxing battles, DIY customization, soccer matches, dynamic music, and cool lighting effectsPlay Fun: RC battle robots can improve development, thinking, joint mobility Gifts: control fighting robot could toy for any kids, This toy is a great gift for birthdays or as a present for Children's Day Specification: with a 3.7V800mAh charging battery that provides 20-25 minutes of play time after a full charging of approximately 3 hours via USB charging cable (included)require two AA batteries each (not included) Size Chart: 17.2cmx12.3cmx16.3cm/6.77inchx4.84inchx6.42inch Package Includes: 2RC battle robots Note: 1.This is not infant toy , please take away from children to avoid eating.2.Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.