Shure BLX24/SM58 M17, UHF Wireless SM8 Wireless Microphone System, Frequency range: M17 (662-686 MHz), The starting point of the wireless Shure SM58, The most famous vocal microphone, Very simple setup and operation of the radio system, Reliable radio transmission, QuickScan finds the best free frequency pushing only one button, Up to 12 systems simultaneously, Microprocessor controlled antenna diversity, Transmission range of the radio system 50 - 15,000 Hz@+*Set includes:* BLX4E radio receiver, BLX2 hand transmitter with SM58 microphone capsule, microphone clamp@+, BLX4E Receiver Characteristics, TRS and XLR outputs, Two-tone audio status LED, Internal antennas, Strain relief for power cord, BLX2 Transmitter Characteristics, Status and battery status LED indicator, Adjustable -10 dB pad, Quick and easy frequency adjustment, Up to 14 hours of battery life with 2 AA batteries, Lock function for on / off switch, Transmission power: 10 mW, Up to 100 metre range, SM58 Vocal Microphone, Optimised frequency response for vocals with present mids and bass reduction, Consistent cardioid polar pattern for isolated sound source and reduced background noise, Integrated, air-sprung vibration absorber minimises handling noise, Integrated, effective wind and pop filter, Transmission range of the microphone 50 - 15,000 Hz, Optional Accessories, WA713 Coloured hand transmitter housing: White #364181#, red #364172#, silver #364179#, gold #364175#, pink #364177#, blue #364180#, URT2 Rack mount kit: Article nr #133263#, WA621 Marking attachments for BLX2: Article nr #336029#