| QUESTION | SLAVE TUNING TOOL | MASTER TUNING TOOL | 
| Do they look the same? | Yes. | Yes. | 
| Do they tune the same vehicles? | Yes. | Yes. | 
| Do they operate the same way? | Yes. | Yes. | 
| Can I read and write a file to a vehicle? | Yes. | Yes. | 
| Can I edit the file that is read | No. (read and write only)     Slave Tuning Tools can read and write a file from a vehicle. However, the tool cannot open the file for editing or medication. | Yes. (and only with map editing software) | 
| Is the tuning tool  linked to a Master | Yes.   This tool will only be in service when it is paired or linked to a Master Tuning tool | No. | 
| Can I write files from any file provider? | No. you can only take Files from the Master Tuning System your Slave Tool is paired to. | Yes. You can obtain Files from any source – including making your own (provided you have the map editing software and training to use the software).   With the right software and training can write his one files, and / or buy modified files from an unlimited number of file suppliers.   | 
| Can I be linked to more than one Master Tuning System | No. | Not applicable. | 
| Can I take a modified file from another Master Tuning System | No. | Yes. | 
| Can I open a File to see the maps? | No. | Yes. Master tools can read open un-encrypted files | 
| Can I change to a different Master | Yes.   Your Master may not want you to know this but yes you can move and become paired to a different Master! You must obtain “permission” from your Master to move to another Master however! | Not applicable. You are a Master!     | 
| Can I upgrade my tool to become a Master in the future? | Yes.     Many Master’s don’t tell you this, but this tool can be upgraded. VIEZU can support the release of your Slave Tuning Tool to become a Master and can support with Training, Technical Advice and Tuning Files. | Not applicable.     VIEZU can support Master system operators with Training, Technical Advice and Tuning Files. | 
| Is there a risk my Master wont release my Slave Tool? | Yes. | Not applicable.     | 
| Can I see the product being demonstrated? | Yes. Contact info@viezu.com to arrange a visit and appointment.     This is a Free no obligation demonstration, the only commitment is your time and ours! | Yes. Contact info@viezu.com to arrange a visit and appointment.     This is a Free no obligation demonstration, the only commitment is your time and ours! |