Mobile Phone Blue tooth Programming Module for fardriver controller. Arrival Programmable For Nanjing FarDriver Controller Blue-tooth Adapter. NOTE: Controller blue-tooth update from 2022, Before order, please check your controller label carefully, and choose correct type. Version:for controller label with "B10/A20/H10" Old Version:for controller lable with "XY", else. Due to different product batches, the appearance may vary, which does not affect the use. Colour:As Shown Material:Plastic Package Contents: 2 x Adapter 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.