Bi-Wing Evo is made of lightweight & durable materials, 2-Channel plane equipped with 2-Channels & 2.4GHz. It's Double Wing design with twin motors could precisely control the speed and has excellent flying stability. It's also easy to operate & even if it's flying at low speed. Flying styles include hand take off, descend and spot landing, circling and gliding. Suitable for age 8Y+ Battery Requirements: Bi-Wing Evo: 1 X Rechargeable Li-PO battery (included) Transmitter: 4 X "AA" Batteries (not included)