Support: 1: All NBT G11/G12 Navigation host Our interface has following functions: 1. Activation of , TV FREE; 2. Activation of Navigation Note:Installation guide not included, we strongly recommend you professional installation.Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use For NBT Activation For ALL NBT G11 G12 For ALL NBT G11 G12 Activate TV Free Video in Motion Navigation Emulator Support all NBT G11/G12 navigation host for TV Free (Driving Video Unlocked)//Navigation It is very easy to install! Colour:Black Material:plastic Package Contents: 1 x Car Navigation Emulator 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.