Ansmann rechargeable systems are utilized by schools, churches, theaters, and production facilities worldwide for use in wireless mics, in-ear monitors, and electronics. There's a reason that clients such as Cirque du Soleil, Blue Man Group, Katy Perry and Nine Inch Nails utilize their rechargeables. They work without compromising performance! Kick the disposable battery habit - make the switch today and see how much you can save. Ansmann rechargeable systems pay for themselves, year after year.