All products come with a 30 day money back guarantee! , but the warranty sticker must be intact and box original for it to be valid. A 15% restocking fee applies to any return of the FX1 PRO within 30 days. We test each high-quality, custom build before it is shipped to you, and all come with an instruction sheet. If you have a question on getting up and running please contact me, and I’ll be happy to help.