Up 4 g is a NADY UHF-4 single channel UHF digiTRU diversity wireless system. This set includes the main unit, the power supply, and two wireless transmitters. There are no wireless max included. What do you say is what you get. These items have not been tested, but I see no reason why they wouldn’t work. The main unit is a little tacky feeling, due to the aging of its rubberized coating. Thank you for your interest and God bless.