3 working fine and 1 is not working, the seller supply good support, I made another order from same seller
I don't know the product, I never received it but seller and aliexpress customer service failed big time. They can't even read official document or track the shipping properly. Both act incompetent and far away from using their logic, common sense and brain. End of the day seller got his money and returning (by canada post) product. For sure their idiocracy shared by Canada Post too.