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Set UHF VOX8 voice activated bugging device and UHF receiver

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  • Model: SETV8UHF
  • Shipping Weight: 0.05lbs



The UHF VOX8 SET combines the voice activated powerful listening device transmitter VOX8, and the professional UHF-433 PLL receiver Ver. 1.
The VOX8 main feature is the voice activation, i.e. it is automatically activated by voice. During silence, when nobody is at home or during sleeping time, it turns to standby mode, and it draws less than 1mA from the battery. The bugging device uses a 9V battery and encased in an ABS box.

Transmits from 200m in urban areas and up to 600+ meters Line Of Sight.

We adjust each set to a 100% exact frequency. This set is using only superior quality components, and one of the unique receiver's features is listening to the converation and recording at the same time, obviously if it is connected to a recorder.

The PLL UHF crystal stabilized receiver can be used in a room,  office or business, indoor or outdoor. It contains a high sensitivity circuit which allows the user to listen from distance, wireless.



  • Operating voltage: 9V alkaline battery (not included)

  • Dimension: ONLY 2 X 5.5 X 8.7 cm.

  • Frequency: 433.8-433.9MHz

  • This is an ORIGINAL crystal controlled NFM PLL UHF receiver.

  • Double Superheterodyne - PLL

  • Sensitivity: Better than –125 dBm into 50 Ohm (12 dB/sinad).

  • Less current drawing than any similar device - due to SMD components. (MIL SPECS 1% accuracy)

  • External antenna, only 10cm.

  • Built by using SMD components, for more stability and sensitiviy

  • Sensitivity: Better than –125 dBm into 50 Ohm (12 dB/sinad)!

  • Deviation: ~ 2.5 KHz to 6 KHz !!!

  • Sockets for audio recording and earphones.

  • External DC socket.

  • Professional plated board for extra stability. There is NOT oxidation and dry soldered joints during the time due to the coating material.

  • Just connect it to the battery, and start listening.


  • Operating voltage: 9V ALKALINE battery.

  • Enclosure Dimension: only 4 X 3 cm !

  • Estimated transmitting range: Up to 700m - LOS on line of sight

  • Audio Compression: amplifies weak whispers, suppress high noises !!!

  • Using SMD, for stability and miniaturization (MIL SPECS 1% accuracy).

  • 7 phases of EXTRA amplified output!

  • Added one more audio stage - 30% more sensitive than VOX6 - Increased NB. (Narrow-band)

  • Using a special material for encapsulating, for safety and anti humidity !

  • There are no interfererences with other devices.

  • 4 mm electret microphone, very sensitive.

  • The device VOX8 works up to 3 weeks connected to a 9V battery (alkaline), depending on the freshness and brand.*

  • Professional gold plated pcb for extra stability.

*The calculation on VOX mode for up to 20 days is by using a 9V alkaline battery and assuming 2 hours of conversations per day (the total of all the activity of the day).


  • 1 Set Quartz stabilized receiver and UHF VOX8 bug evesdropping transmitter.

  • 1 User manual.