Sennheiser SK 300 G4-RC Wireless Bodypack Transmitter GW1 100741695 there is also a simple

there is also a simple analog input buss that allows inputs to be sent from one unit to the next for unit and job scalability

Data Connectors: Proprietary 4-pin IP65 input power/data cord (19 in/483 mm)

JBL PRX518S

Equipped with a detachable MMCX connector that swivels for increased comfort and durability

Sennheiser SK 300 G4-RC Wireless Bodypack Transmitter GW1 100741695 there is also a simpleSennheiser SK 300 G4 RC Bodypack Transmitter GW1 Robust bodypack transmitter for use with any Sennheiser headmic or lavalier microphone (SL HeadMic1 1, ME 2 recommended) Robust bodypack transmitter with increased bandwidth and transmission power for evolution wireless G4 300 Series systems, delivering exceptional speech intelligibility in Business and Education. What's in the box SK 300 G4 RC bodypack transmitter 2 AA batteries pouch quick guide