... for using:6 minute -Meet CE 21CM 3.5CH RC ALLOY HELICOPTER WITH GYROSCOPE-Frequency: infrared-Operation distance:8M-Time for using ... 'HQ/329CTNS/7872PCSCertificate: EN71,EN62115,ASTM,HR4040,6PWeight of the helicopter: 40gProduct Size: 209×175×113mmColor: WhiteFunction: three point five-channel ... ABC; Effective operation distance: within 8 meters; 21CM 3.5CH RC ALLOY HELICOPTER WITH GYROSCOPE