1)specialized in rc helicopter 2)USB charger & with Gyro 3)Long time flying ability ... qulity,fast delivery Item no.U12Description:2.4G Big Metal Remote Control HelicopterFrequency:2.4GItem size(CM)75*12*26CMRunning time5-8minutesCtn ... Included:USB charging line,one upper rotor blade,one lower rotor blade,one tail rotor blade,one link rodCertificate:LED,FCC,EMC,EN62115 ...