1.2.4GHZ Radio Control Technology 2.MEMS GYRO,3D FLIGHT 3 ... to the edge.The Whole new T54 is brilliant helicopter with its powerful, design and high-end technology, ... , MEMS GYRO and more. MEMS GYRO When the helicopter is flying outdoor and keeps spinning because of the ... 8mins after full charging to 30mins*Control Distance: About 30meter*helicopter Battery: : 3.7V 300MAH Li-polymer*Controller Battery: ...