Sennheiser ew 100-845 G4-S Wireless Handheld Microphone System A: (516 to 558 MHz)

SKM 100 G4 with e845 Capsule
EM 100 G4 Rackmount Receiver
1680 Tunable Frequencies Across 42 MHz
Auto Frequency Scan Finds Open Bands
3-Level Squelch to Block Interference
20 Banks with 12 Channel Presets Each
Compander for Clearer Sound
Auto-Lock Prevents Accidental Adjustment
Includes Rack Kit and RJ10 Link Cable
Power Supply