Shure BLX2/SM58 Wireless Handheld Microphone Transmitter with SM58 Capsule - Receiver Sold Separately (Discontinued by Manufacturer)
Brand: Shure
Power and battery status LED
Adjustable gain control
Quick & easy frequency matching
2 AA batteries (included) provide up to 14 hours of continuous use
300 feet (91 m) operating range (line of sight)