... ROHS,CE,ASTM,HR4040 37CM ALLOY 3CH RC HELICOPTER-Frequency: 27MHz-Operation distance:40M-Time for using:8 minutes-Meet ROHS,CE,HR4040Item ... /1424PCS40'HQ/433CTNS/3464PCSCertificate: EN71,EN62115,ROHS,ASTM,HR4040,6PProduct Size:35.5x7x19cmFunction:three channels(go up & come down & forward & backward ...