Dear your esteemed company, We have purchased your products over the past few years. This time, I purchased the VTF-032BT product. It is no different, since VTF-032BT uses Bluetooth communication, We would like to proceed with radio certification in Korea. I received a lot of information through Lily Zhao, but I haven't received a response to any additional questions for a month, so I'm requesting you again through your official email. 1. Is there any way to know that your bluetooth module contains BR, EDR and LE? 2. RF test program refers to a program that can control Bluetooth products by connecting to the desktop. (so, We need USB parts that can be connected to a PC, PC drivers and programs, etc.) We look forward to your reply. Thanks & Best Regards, Giyul Ham.