Nady ENCORE DUET HT F/E Two-Channel (A/F) Wireless Handheld Microphone System with Two Microphones Two Nady WHT-15 hand-held mics with transmitters Off/standby/on switch allows muting the transmitter while maintaining signal integrity Dual-channel receiver with independent balanced XLR and mixed unbalanced 1/4" jack outputs VHF high-band frequency range: 169-216 MHz Operational range up to 500'