Shure BLX288/SM58 – Wireless Dual Vocal System with two SM58 Handheld

Power and battery status LED
Adjustable gain control
Quick and easy frequency matching
AA batteries (included) provide up to 14 hours of continuous use
100 m (300 ft) operating range (line of sight)
Integrated microphone capsule design
-10 dB gain attenuation
Lightweight, rugged construction
Color ID caps (available separately)