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Shure MX690 Microflex Wireless Boundary Microphone Band G4  (Open Box)
Ships Internationally
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Product# 270913

The Shure MX690 Microflex Wireless Boundary Microphone offers total freedom of placement with no holes to drill or cables to run for installation. The MX690 plate mic is a both a microphone and a wireless transmitter and is the perfect solution for conference and meeting spaces where users demand flexibility and high performance. Compatible with Shure SLX wireless systems, including the SLX4L receiver with logic output for applications requiring logic functionality.

Consumer Alert:

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCCs wireless microphone website at: www.fcc.gov/cgb/wirelessmicrophones.

FEATURES
  • Sleek, low profile design
  • Frequency agile, microprocessor controlled transmitter
  • Bi-color status indicator
  • IR link to SLX receiver for automatic frequency synchronization
  • Programmable mute function
  • Battery level indicator
  • Operates on two AA batteries
  • Logic output for remote LED and mute control
  • CommShield Technology for improved RF filtering
SPECIFICATIONS

MX690 Microflex Wireless Boundary Microphone

  • Transmitter Specifications
    Operating Range: 100 ft (30 m) (Note: Actual range depends on RF signal absorption, reflection, and interference)
    Frequency Stability: ±10 ppm
    Maximum Frequency Deviation: 45 kHz
    Oscillator Type: Phase-locked loop (PLL) controlled synthesizer
    Power Requirements: 3V (2 AA alkaline or rechargeable batteries)
    Battery Life: ‰8 hours (alkaline)
    Power Consumption: 130 mA, ±15 mA
    Operating Temperature Range: -18”57 degrees C (0”135 degrees F)
    (Note: Battery may limit this range)
    Dimensions (H x W x D): 1-11/16" x 3-3/8" x 5-13/16" (43 x 87 x 148 mm)
    Weight: 11.2 oz (318 g)

    Microphone
    Type: Condenser (electret bias)
    Frequency Response: 50”17000 Hz
    Polar Pattern (at 1 kHz): Cardioid
    Sensitivity (at 1 kHz , open circuit voltage): ”33 dBV/Pa (22 mV) 1 Pascal=94 dB SPL
    Dynamic Range (1 kohm load at 1 kHz): 96 dB
    Common Mode Rejection (10 Hz to 100 kHz): 45 dB minimum
    Preamplifier Output Clipping Level (1% THD): ”6 dBV (0.5 V)
    Polarity: Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output XLR connector or tip of 1/4" phone plug.
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