Sennheiser EW-DX MKE 2 SET (U1/5) (509321)
Digital wireless lavalier set. Includes (1) EW-DX EM 2 receiver, (2) EW-DX SK bodypack transmitter, (2) MKE 2 lavaliers and (2) BA 70 batteries, frequency range: U1/5 (823.2 - 831.8 MHz & 863.2 - 864.8 MHz)