The Telefunken Elektroakustik M80-WH wireless dynamic microphone head has rapidly become a new standard for live performance and stage use. The microphone features a low-mass capsule built with a super thin Mylar membrane to give superior clarity and extended high frequency response (which in many ways is similar to what one might expect from a condenser microphone), in a rugged design meant for daily abuse in touring applications.
In 2008 a band called Green Day tried the M80 and found they liked the tone of the microphone in various applications, but especially on vocals. The only fly in the ointment was that Green Day isn't a club band, they're an internationally prominent act that regularly sells out arena and stadium venues, which in this day and age means that a wired vocal microphone is out of the question.
After a bunch of experimentation and some custom machining the design team at TELEFUNKEN Elektroakustik was able to successfully modify Green Day's current Shureﾮ wireless mics to feature an M-80 wireless head, complete with TELEFUNKEN Elektroakustik head grill, capsule, and output transformer.
After giving the modified Shure mics a try, more than 40 wireless modifications were ordered by Green Day as they embarked on a world tour. From this success "team TELEFUNKEN" developed a standard modification process for Shure microphones.