Sennheiser SK 100 G4 Wireless Bodypack Transmitter (G: 566 to 608 MHz)

The Sennheiser SK 100 G4 is a bodypack wireless transmitter compatible with the EM 100 G4 wireless receiver. The rugged, all-metal design is comfortable for performers and presenters to wear for daily use on stage. It provides up to 8 hours of operation on two AA batteries, with a fixed 30mW RF power output and a transmission range up to 330 feet.