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Tram TR-50 Lavalier Microphone - Black

Abel Code: TR-50-BML
Mfr. Code: TR-50 BML+
Estimated to Ship – 5-10 Business Days
This TRAM TR-50 Lac Mic (Black) with accessories is lightweight, compact, and easy to conceal. A range of mounting accessories lets you place the personal body mic where you need it. The TR-50 delivers a wide frequency response and low rubbing noises.
Key Highlights
  • Positive Bias
  • Omnidirectional Polar Pattern
  • Includes multiple mount accessories


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 Lavalier Microphone offers a combination of features not offered by other microphones.

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 TR50 is available with a variety of connectors (Micro-Mini, LEMO in 4-, 6- or 8-pin, Mini Switchcraft in 3-, 4-, or 5-pin, Sony, Sennheiser, etc.) For direct attachment to any wireless microphone transmitter. In addition to its use with wireless transmitters, the TR-50 can be used as a low impedance hard-wired microphone with the TR-79 power supply. 12/48v phantom powering (in addition to internal powering) is available on all TR-50 PS microphones and TR-79+ positive bias power supplies.

The TR79 power supply (sold separately) provides a balanced transformer output to an XLR connector and uses an Eveready 357 battery. The battery compartment is designed to permit only (1) 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.


  • 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
  • Available in 4 colors: black, gray, white, tan
  • Large range of connectors for direct use on a wireless transmitter
  • Strong, durable and reliable

When using the Clip On and Tape Down Holders under clothing, mount the mic with the back out (facing clothing), as the back of the microphone housing has less rubbing noise than the front grid. There will be no reduction in audio sensitivity. 

What's in the Box

  • Limited 1-Year Warranty
  • TT Tie Tack (Black)
  • TD Tape Down (Black)
  • CC Carrying Case (Black)
  • Windscreen (Black)
  • TB Tie Bar (Black)
  • COH Clip On Holder (Black)
  • CH Cable Holder (Black)
  • Tram TR40 Omnidirectional Lavalier Microphone (Black)


Key Highlights

  • Positive Bias
  • Omnidirectional Polar Pattern
  • Includes multiple mount accessories
  • Low noise from clothing and motion
  • Color: Black


Dynamic Range:
3,000Ω (TR-79 Power Supply - 250Ω)
Microphone Type:
Electret Condenser
Signal-to-Noise Ratio:
Frequency Response:
40 Hz to 16,000 Hz
Microphone Notes:
Battery Details - 357 (SR44W/313)
Bias: Positive
Current Drain - 20-30 microamps (TR-79: 80-100 microamps)
Isolated Mic Element - to reduce rubbing noise
Equivalent Noise Level:
26dB equivalent SPL
Max SPL:


Input Voltage:
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