SK-XSW (E) Bodypack (821 to 832 MHz) + (863 to 865 MHz) (Use for SK20-E)

Sennheiser SK-XSW Wireless Bodypack transmitter Frequency range E (821 to 832 MHz and 863 to 865 MHz).
Mic line inputs and Mute switch.
Sennheiser suggest the SK XSW-E as a possible replacement for the SK 20 Bodypack 821-832 MHz and 863 - 865 MHz.