幸运飞艇7码走势

USL IRH-280

two channel ir headphones for hi and vi-n audio. switch selects either 2.3 mhz or 2.8 mhz


Features

  • The headphones receive audio over infrared
  • No RF interference problems of cross talk between auditoriums
  • High quality sound ensures maximum intelligibility for the hearing and visually impaired
  • Slide switch selects between 2.3 or 2.8 MHz
  • Designed for low distortion and high clarity
  • Provide DC and AC magnetic fields to drive automatic switching telecoils in hearing aids
  • Include a 3.5mm jack to drive neck loops or "direct audio" inputs on hearing aids and implants
  • Modulation LED meter for accurate level calibration
  • Input range 100mV, to 30V R.M.S.
  • Two channel over the head unit has sensors on both sides
  • Power on/off slide switch and independent volume control for left and right ear
  • Powered by two AAA batteries
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