The Shure ULX2/58 Handheld Transmitter Microphone is comprised of the ULX2 Wireless transmitter fitted with the SM58 microphone capsule. The ULX2 features include a 3-segment battery fuel gauge, backlit LCD shows group and channel, frequency and power settings, control lockout, 8 hour battery life, and a 300 ft (92 m) operating range. The ULX2 transmitter is designed to allow for interchangeable microphone cartridges. The Legendary Shure SM58 vocal microphone, tuned to accentuate the warmth and clarity of lead and back-up vocals. Consistently the first choice of performers everywhere.