Perfect VCI to work with 909, 919 an Ultra if you find the original VCI a bit large. 

Orignal Autel MaxiSYS VCI100 MaxiVCI V100 Maxisys Bluetooth VCI Compatible for Autel Maxisys MS906BT

This MaxiSYS VCI100 Bluetooth Interface Can Work for Maixsys Series Tool including MS906BT, MS906TS, MK908, MS908, MS908S Pro, MS908 Pro, MK908P and Maxisys Elite Ultra 909 and 919

Description:

The wireless diagnostic interface MaxiVCI V100 isa small interface box used to connect to a vehicle's diagnostic connector (DLC) and connect wirelessly with the MaxiSys Display Tablet, as well as standalone PC, as a vehicle communication interface (VCI) for vehicle data transmission. Thanks to the wireless BTtechnology, with which you are allowed to work freely around the vehicle.