Electrovoice EV R300-E Headset Wireless Microphone System - B Band Electro-Voice R300 E-B The Electro-Voice R300 E-B is a robust headset UHF wireless system operating on ‘B’ Band and designed to give you a great sound for your presentations, and public addresses. The system features a robust bodypack transmitter with headset microphone (HM3). A high quality head worn microphone suitable for sound reinforcement or recording of voice, and allows users the convenience of a hands-free presentation or performance experience. Also included is a robust receiver with dual antenna diversity to help avoid signal dropouts, and its durable metal frame and chassis can either be used on a tabletop, or rack-mounted with optional rack mounting. Further more, the on-board ‘ClearScan’ technology that allows you to search and find the best channel to operate on. Making this a great all-rounder microphone and ideal for almost any application. MAIN FEATURES Designed for Presentations, Performance & Sports Venues, and more ClearScan finds the clearest channel available with the touch of one button EZsync infrared channel transfer from the receiver to the transmitter for easy and error-free setup HM-3 Omni-directional headset microphone provides clear and crisp sound 14 hour battery life from two AA alkaline batteries Rugged metal transmitter with backlit LCD display and battery gauge 32 preset channels, with compatible groups of 8 channels for simultanious use Detachable half-wave receiver TNC antennas allow for use with the APD4+ antenna distribution system Metal receiver chassis with optional rack mount ears and front mount antenna cables SPECIFICATIONS Antennas: Flexible TNC 1/2 Wave Audio Frequency Response: 80 Hz - 18kHz +/- 2dB Battery Life: 14 hours with (2) AA alkalines typical Case Material: Metal Connector Type: 1/4 inch unbalanced, 3-pin XLR balanced Controls: on/off, Set, Up, Down, Sync Distortion (@ 1 kHz, 40 kHz deviation): < 1.0, 0.4 typical % Operating Frequency: 678 - 694 MHz (B Band) Diversity: True Antenna Dynamic Range: > 95 dB Element: HM-3 Omni-directional Headset Number of Channels: 32 per band, 8 simultaneous Operating Temperature Range: 5º - 45º C Power Requirement: 12-16 VDC, 500 mA max Receiver Type: Synthesized PLL RF Frequency Range: 16 MHz RF Output: 8 mW typical RF Sensitivity (12 dB SINAD): < 1.0 uV Signal-to-Noise Ratio (A-weighted): >100 dB Squelch: Tone code plus Amplitude