Nady WHT-15/E Nady Wireless Handheld Wireless Handheld Microphone Transmitter For Nady Encore I and II, Duet, 101, 401, and 401X QUAD Receivers For Nady DKW, WA 120, 151 VR and 351 VR Receivers Microphone Only, Receiver Not Included Frequency: E (215.200 MHz)