Horrible products and even worse customer support and service. I have GA5166x that has no sound! I have to disconnect all power every few weeks to get it to reset. Customer support is only chat or email from China with poor English. No phone support. Not supporting thier warranty. Sent wrong system password. Sent me older, not newer update file, etc... They sell the older O/S and models as new. Best Buy install gurus will not touch these units. Do not buy, run. Walt & Martha Johnson