B-3 Plus is a step up from the incredibly popular B-3 plug-on wireless system from NU-X, with enhanced audio spec and lower power consumption for longer operation between charges. Simply plug the transmitter onto a dynamic microphone and plug the receiver into an input channel or DSLR camera aux input and switch both units on. The B-3 Plus is equally useful for wireless transmission of a mixer output to an active speaker. Auto-pairing detects the most stable channel and selects both to connect on that frequency. There are 6 channels to choose from, each with multiple frequencies to hop between and a digitally encoded signal for the best possible stability. The B-3 Plus has more dynamic range, longer battery life, easier setup and greater stability to provide a wireless solution you can rely on.