Yi Zhan Yizhan i4w WIFI FPV With 720P Camera One Key Return RC Quadcopter RTF. Yizhan i4w Description: Item name: YiZhan i4W Quadcopter Frequency: 5.8G Gyro: 6 axis Flying time: 5 mins R/C distance: about 50 m Product weight: about 42 g Quadcopter size: 13.5x 14.5 x 2.5 cm Package size: 48 x 45 x […]