Tram TR50 Microphone

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When it was introduced, the TRAM TR50 miniature microphone revolutionized the industry - it has become the standard in feature film, television production and other areas of the entertainment industry. In addition to its diminutive size and superior sound quality, the TR-50 offers a combination of features that are simply not offered by any other microphone. The TRAM TR50 miniature professional lavalier microphone answers the needs of even the most demanding sound recording engineer. It has been designed with the latest electret development and electronics technology, to provide high sound quality with little or no visibility. Its small size and unique design permit a variety of uses and fastening options, that make 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. A variety of accessories makes mounting the mic on or under clothing easy, with reliable results. 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. The TR79 power supply provides a balanced transformer output to an XLR connector and uses an Eveready 357 battery. The battery compartment is designed to permit only one insertion direction, so the polarity cannot be reversed. This compartment is accessible by turning the black plastic end cap counter clockwise and pulling firmly. The battery is removed by pushing it out with a sharp object through the hole provided in the bottom of’ the compartment.

Kit Includes

  • Tram TR50 Lavalier Microphone
  • Cable holder
  • Carry case
  • Clip on holder
  • Tape down holder
  • Tie bar
  • Wind screen

* Please note that radio microphone is not included


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

Technical Specifications

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

Case Studies


£10.00 per day

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