ATW-3212/C510/EF1 Handheld Mic System with ATWC510 Tx 590-650MHzProviding easy setup, versatile operation and rock solid, richly detailed high fidelity sound, Audio Technicas fourth generation 3000 Series wireless systems give users the power and flexibility to operate within the congested UHF spectrum. With a class leading 60 MHz tuning range more than twice that offered by the previous versions the new 3000 Series systems are available in 6 frequency bands DE2 (470530 MHz), EE1 (530590 MHz), EF1 (590650 MHz),