excellent quality product - verified that it works as advertised - unit is exactly as described - there was a problem with the tracking number, however, the seller was very helpful and quickly responded to my enquiry and checked and then advised it had been shipped and had already left China and was in transit - the seller also extended the buyer protection to cover if the shipment arrived late however despite the tracking still saying today that it is awaiting shipping, the unit nevertheless arrived safely today within the original time period - very pleased with product and seller