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 channelsOne set of weight: 431g with glue 420g without glueRemote control distance: The remote control distance is 200 metersNumber of driving motors Flight time: Hollow cup motor 720*2 15 minutes (subject to actual conditions)Charging time: About 30 minutesBody battery: 3.7V300Ah LIPORemote control battery : 3 batteries (self provided)Colour:blueMaterial:plastic, foamPackage Contents:1 x Airplane Model1 x Remote Controller1 x USB CableOnly 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.