This is one of the most popular indoor helicopters
Function: Flying up and down, slow forward, turn left and right, and suspension.
Rechargeable battery: Li-Poly 3.7v 350Mah (included)
Transmitter battery: 9V (included)
Remote distance: 10 meters
Flying height: 8 Meters
Flying time: 8 minutes
Battery full charge time: 1 hour