I had been watching the AT1 unit on Banggood for a few weeks as a cheaper alternative to the Hyungyang units (although it has a lot less features) and was interested to see what you get for your money. Plus a few people had bought one and got stuck so thought I could give some feedback. It was around £75, then I noticed it dropped to ~£56. Seems like they just play with the offers. Mine was free so not too worried but thought I’d feed that back.