WL Toys V911 4CH 2.4GHz LCD screen Solo pro R/C RC Helicopter RTF Battery for helicopter: 3.7V 120mAh/15C Li-Polymerv Flying time: About 5-6 minutes Charging time: About 30 mimutes (USB charging) Battery for controller: 6 * AA batteries (not included) Helicopter size: 22 * 5 * 8.2cm