A rush of Yizhan RC Drones are coming ( 2 )

As time went by, there are various Chinese brand rc drones in the market, for example, Align RC Helicopter. Yizhan is one kind of Chinese brand of rc drones and it recently released a series of new products, including two rc quads, and three RC Hexacopters. At this article, I will briefly introduce these three RC Hexacopters.  

The briefing information upon Yizhan i6W:

Item name: YiZhan i6W Hexacopter
Frequency: 5.8G  
Gyro: 6 axis
Flying time: 6 mins
R/C distance: about 30 m    
Product weight: about 42 g
Quadcopter size: 13 x 12 x 4 cm
Package size: 48 x 45 x 90 cm
Charging time: 50 mins
Product battery: 3.7V 450mAh(Included)
Remote battery: 3 x AA dry battery(Not included)
Color: white

The briefing information upon Yizhan i7s:

Item name: YiZhan Nano Hexacopter
Frequency: 2.4G  
Gyro: 6 axis
Product weight: about 290g
Product battery: 7.4V 850mAh(Included)
Remote battery: 3 x AA dry battery(Not included)
Charging time: 100 mins
Flying time: 7 mins
R/C distance: about 300 m            
Flying distance: about 300 m          
Color: white
The briefing information upon Yizhan i7H:

Item name: YiZhan Nano Hexacopter
Frequency: 2.4G  
Gyro: 6 axis
Product weight: about 290g
Product battery: 7.4V 850mAh(Included)
Remote battery: 3 x AA dry battery(Not included)
Charging time: 100 mins
Flying time: 7 mins
R/C distance: about 300 m            
Flying distance: about 300 m          
Color: white