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UHF Transmitter 3v to 6v with External Microphone

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  • Model: L36MS
  • Shipping Weight: 0.03lbs



Micro spy bug transmitter designed for room surveillance. It includes an external microphone, making the hiding task easier than ever.
Broadcasting on the UHF band for high performance and privacy. The range is approximately 200m in urban area and up to 500m on clear (line of sight).

Super sensitive microphone, only 4mm diameter, on a 6cm flexible cable.
This bugging device is manufactured to intercept audio information (speech) and transmit it via a radio channel.
The transmitter is built on a printed circuit board. The battery holder is located on the rear of the circuit board.
The audio bug is also equipped with an external miniature microphone and external antenna.
As soon as the battery is installed into its case, the product will turn on immediately.
This transmitter is designed especially for places where is difficult to hide a listening devices.
The L36M broadcasts powerful, clear sound. It is designed and tested in our specialized laboratory and tested as well in real conditions for maximal distance.

Compatible receivers:

or any receiver within 400-450 MHz band and 2.5 kHz steps.


  • Working Voltage: 2 x3V Lithium (From CR2032 to CR2450)

  • Board Dimension: The Diameter is only 2.4 cm (1.0").

  • External microphone: 4 mm diameter on a 6 cm cable.

  • Transmitter's frequency range: NFM (UHF) 433.6-433.9MHz CRYSTAL STABILIZED.

  • Long transmitting range: up to 500 m on clear. (L.O.S).

  • Using mil. specs. material for encapsulating, for safety and security.

  • The device is coated with special Anti-static material.

  • Penetrates through walls and ceilings.

  • FET amolified microphone may hear a whisper from about 30sq.ft (100sq.m) radius , crystal clear. You won't miss a word.

  • Professional gold plated board for extra stability.


  • 1 x Crystal controlled PLL Crystal controlled L36M SPY BUG Transmitter.

  • 1 x Instructions Manual.