Shure BLX24/SM58 Wireless Vocal System with SM58

Included: BLX4 wireless receiver; BLX2/SM58 handheld transmitter with integrated SM58=- cardioid dynamic microphone capsule; microphone clip; padded zipper case
Power and battery status LED
Adjustable gain control
Quick & easy frequency matching
2 AA batteries (included) provide up to 14 hours of continuous use