... type: 2.4GHzchannel: 4.0channelcertification: LED,FCC,EMC,EN62115,EN71,ROHS,ASTM,6PPackaging & Delivery Packaging Details:one set in a color ... /40FCL/40HQ: 2688/5568/6528PCSTop quality with reasonable price and best service! Various designs of rc helicopter for option! ... time:60 minsFlying time:5-7minsFunctions:Up and down,Forward and back,Turn left and right,Hovering, Tiny adjustment, Light control, ...