vt500 & vt506VT403 Vocal Ultra-Miniature Omni Lavalier

The VT403 is an ultra-miniature Hi-SPL and water resistant Omni lavalier microphone. Fitted with a special subminiature microphone capsule, the VT403 has high electromagnetic interference protection, very low inherent noise and a low distortion for high sound pressure levels (up to 136 dB SPL). It is highly water resistant with an open, moderate rising HF response that is excellent for vocalists, sports, theater and stage presentations.

VT403 microphones are delivered with a choice of many popular connectors in an attractive waterproof mini Otter box with four accessories.

Available in Black


VT403 Microphones Feature


  • Hand selected Omni electret capsule inserts individually tested for frequency response & sensitivity within low tolerances

  • Precision molded ultra-miniature capsule head for long lasting durability

  • Flat response with a presence boost between 10 and 15 kHz

  • Water resistant

  • Loud vocal handling up to 136 dB SPL

  • Super-thin 1.5 mm diameter (3-wire) cable that is supple and easy to “dress” on talent

  • Large selection of custom-made mounting accessories - four are included!

  • Offers XLR-3 phantom power adaptor option with the VT1126 or VT4026

  • Available in Black and Beige

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VT403 in hair for theatre performance AC403 Black & Beige Click image to see XLR-3 options




Included Accessories

  • Alligator Clip (AC403)

  • Dracula Mount (DM403)                 

  • Tie-Tac Clip (TT403)                       

  • Windscreen (WS403)               

  • Otter Box (VTO)



VT403 microphones are available in Black and Beige


vt500 & vt506 vt500 & vt506



Wireless Connector Terminations

Voice Technologies VT403 lavalier microphones are designed to excel for performing talent in broadcast, theatre, film, ENG, EFP, public address and sound reinforcement. They are available with connector terminations for most popular wireless brands currently in use. VT403 mics can be connectorized and compatible with virtually any wireless transmitter. The following are continuously available with immediate delivery:

  • 3-Pin Lemo for Sennheiser SK50, Series 2000, Audio Ltd. miniTX and most Zaxcom
  • 3.5mm TRS for Sennheiser Evolution wireless
  • TA5F for Lectrosonics “Legacy” transmitters with their original input topology
  • TA5F for Lectrosonics Servo-Bias Inputs, SMa, SMV, SMQV, UMa & LMa. Essentially anything new
  • TA4F for Shure and Sabine
  • Binder 5-pin for Audio Ltd. En2 TXPH
  • 3.5mm TRS for Sony UPW and WRT-805
  • 6-pin Lemo for Audio Ltd. TX2040, TX2020 and TX2000