I bought the unit in 2019, then last year for some reason the mother board power failed. I discovered that the warranty was 3 years, which was a pleasant surprise as i thought i lost the device completely. They sent me a replacement free of charge with the shipment paid.unfortunately, the replacement device also failed after a couple of months. They sent me another replacement  with no questions asked.I bought the device from the US, but i am now located in Egypt. This fact did not make any difference for them. The replacements were very fast with no issues with the egyptian red tape.