Shure BLX1288/PG85 Wireless Combo System with PG58 Handheld and PG185 Lavalier Microphones, K12 Included: BLX88 dual wireless receiver; BLX1 bodypack transmitter; PG185 cardioid condenser lavalier microphones with windscreen and tie clip; BLX2/PG58 handheld transmitter with integrated PG58 cardioid dynamic microphone capsule; 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)