The best rc helicopter 4ch 1.new design and the good quantity 2.hot sale in the market 3.high propeller The best rc helicopter 4ch1.Product Feature: Up/down, left/ right,forward/backward 2, Battery:3.7V180mAh Li-po battery for main body;3, Remote control batteries:6*1.5VAA battery;(Not included) 5, Charging time: 30minute;6, Flying time: 8minute;7, Control area: 10meter The best rc helicopter 4ch ...