Product Name : Assembly of DIY components for 787 remote controlled glider /(C919 coating aircraft teaching machine) Remote control frequency: 2.4Ghz frequency remote control Three channels One set of weight: 431g with glue 420g without glue Remote control distance: The remote control distance is 200 meters Number of driving motors Flight time: Hollow cup motor 720*2 15 minutes (subject to actual conditions) Charging time: About 30 minutes Body battery: 3.7V300Ah LIPO Remote control battery : 3 batteries (self provided) Colour:blue Material:plastic, foam Package Contents: 1 x Airplane Model 1 x Remote Controller 1 x USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.