Hard Wired Battery Powered Lavalier Microphone


The TR50 miniature professional lavalier microphone answers the needs of even the most demanding sound recording engineer. Its small size and unique design permit a variety of uses and fastening options, making it ideal for unobtrusive appearance and hidden mic use. The tiny omni-directional capsule features minimum sound coloration and is therefore easily combined with boom mics during post production. The extended frequency response range and omni-directional characteristics have been designed to satisfy the most stringent requirements in all professional audio fields, particularly film and TV production. It is available with a variety of connectors for direct attachment to any wireless microphone transmitter. This version is hard wired (phantom or internal battery power). Black in color.

Shown in gray.


  • Miniature Electret Condenser Microphone
  • Minimum sound coloration for universal use
  • Easily combined with boom microphones
  • Tiny, lightweight and compact; easily concealed
  • Extensive range of mounting accessories
  • Wide frequency response
  • Very low rubbing noise
  • Internal battery or 12-48V phantom power (with positive bias version only)
  • Detachable 250 Q power supply
  • Black 
  • Large range of connectors for direct use on awireless transmitter
  • Strong, durable and reliable


  • Size: .18” x .300” x .55”
  • Type: Omni-directional electret condenser
  • Freq. Response: 40 - 16,000 Hz
  • Noise Level: 26dB equivalent SPL
  • Maximum SPL: 134dB
  • Output Level: -57dB
  • Nominal Impedance: 3,000O (TR-79 Power Supply - 250O)
  • Operating Voltage: 1.5V
  • Current Drain: 20-30 microamps (TR-79: 80-100microamps)
  • Battery: 357 (SR44W/313)
  • Isolated Mic Element: To reduce rubbing noise
  • Bias: Negative and Positive
  • Cable: Sturdy, Flexible (TR-50BPS – 9 ft. long)
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