HM830 Easy RC Folding A4 Paper Airplane DIY Dimension: 26*13.2*2.5CM Frequency: 2.4GHZ ; Remote Range: 200m; Flight time: 12min Flight height: 150m Battery for plane: 3.7v lithium battery Purchase a A4 paper, fold the model you like, install it on the plane. Fly the self-designed toy!