Included: BLX88 dual wireless receiver; 2 BLX2/PG58 handheld transmitters with integrated PG58 cardioid dynamic microphone capsules; 2 microphone clip;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)