Shure SLX Wireless Handheld Microphone System, SLX24BETA87-J3 This Shure SLX Wireless Microphone System includes a Shure SLX4 Diversity Receiver, and a Shure SLX2/Beta87A Wireless Handheld Transmitter Microphone that offers exceptional clarity to live vocals.Sound installations and working bands need powerful wireless tools that can be set up quickly and used confidently. Shure's rugged SLX Wireless Systems exceed these demands with innovative automatic setup features, such as auto frequency scan and transmitter setup, and exceptional wireless clarity. Supporting 20 compatible systems across multiple UHF frequency bands, SLX smoothly integrates into houses of worship, lecture halls, conference rooms, and mobile gear cases. SLX Wireless Systems feature Shure's patented Audio Reference Commanding for crystal-clear sound beyond the limits of conventional wireless.

Shure SLX4 Wireless Receiver
The SLX4 wireless receiver is a breeze to use with Automatic Frequency Selection and Automatic Transmitter Setup. With included rack hardware and detachable antennas, it is ready for immediate installation right out of the box. Shure SLX2/Beta87A Wireless Transmitter Microphone
The Shure Wireless Microphone consists of the SLX2 Transmitter with Beta 87A Supercardioid Microphone. The Shure SLX2 includes timed backlit LCD display, frequency and power lockout, and "Mute" functionality. Its design allows for interchangeable microphone cartridges. With a smooth, tailored response for warm, accurate sound, the Beta 87A vocal microphone leads the field for studio-quality sound in live performance.Shure SLX24/BETA87A Wireless Microphone System Specifications: SLX4 Wireless Receiver: ·         Audio Output Level (ref. ± 38kHz deviation with 1kHz tone): XLR connector (into 600 Ohm load): 13dBV; 1/4" connector (into 3000 Ohm load): 2dBV·         Output Impedance: XLR connector: 200 Ohms; 1/4" connector: 1kohms·         XLR output: Impedance balanced; Pin 1: Ground; Pin 2: (+); Pin 3: (-)·         Sensitivity: 105 dBm for 12 dB SINAD, typical·         Image Rejection: >70 dB, typical·         Power Requirements: 12 18 Vdc at 150 mA, supplied by external power supply·         Operating Range Under Typical Conditions: 300 ft. (100m)·         Note: Actual range depends on RF signal absorption, reflection, and interference·         Audio Frequency Response (+/ 2 dB): Minimum: 45 Hz: Maximum: 15 kHz·         Note: Overall system frequency depends on microphone element.·         Total Harmonic Distortion (ref. +/ 38 kHz deviation, 1 kHz tone): 0.5%, typical·         Dynamic Range: >100 dB A-weighted·         Operating Temperature Range: 18 degree C (0 degree F) to +50 degree C (+122 degree F)·         Note: battery characteristics may limit this range·         Dimensions (H x W x D): 1.65 x 7.76 x 5.28 in., (42 x 197 x 134 mm)·         Weight: 1 lb. 13 oz. (816 g )·         Housing: Galvanized steel·         Transmitter Audio Polarity: Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with·         respect to pin 3 of low impedance output) and the tip of the high impedance 1/4-inch output.·         Logic Connections: Pin 1: Logic output, Transmitter Mute Status. Mute=low (0 V). Sinks up to 100 mA. Absolute maximum -0.7 to 5.5V DC; Pin 2: Logic ground; Pin 3: Logic output, Battery Status. Good=low (0 V). Sinks up to 100 mA; Absolute maximum -0.7 to 5.5V DC SLX2/Beta87A Wireless Transmitter Microphone ·         Audio Input Level: +2 dBV maximum at -10dB position; -8 dBV maximum at 0dB position·         Gain Adjustment Range: 10dB·         RF Transmitt