Made of high intensity material, shock-resistant and durable. The controller is a sine wave three-mode controller with Hall brushless motor with self-learning function. The controller is a sine wave three-mode controller, matched with Hall brushless motor with self-learning function. Solid metal can effectively protect the internal circuit and facilitate heat dissipation. Colour:As shown Material:composite material Package Contents: 1 x 17A controller 1 x KT-BZ-8 booster 1 x S800 Display 1 x TT090 throttle finger dial 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.