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Our audio stopper nullifies spy microphones.

Our microphone stopper uses white noise to stop most microphones from hearing & recording your voice. The sound jamming device affects spy mikes with audio noise as opposed to RF radio frequency. The device is effective for counter surveillance security, to stop spy microphones from hearing clear voice conversations.

The Microphone stopper process.

The process used by our microphone stopper has been available for many years. Various products use wight noise to jam spy devices because it works and it’s an effective way to stop audio-based spy equipment.

microphone stopper

Effective microphone stopper.

  • Easy to use.
  • Effective sound stopper.
  • Defeats microphones.
  • Safe audio jammer.
  • Rechargeable battery.
  • Works for 6-hour.
  • Volume attenuation.

How the microphone stopper works.

The microphone stopper is not technical to operate, the weight noise comes out of the speaker and sounds similar to a radio that’s out of tune. The sound waves oscillate at a unique audio frequency, effectively disrupting the audio sound harmonics of a microphone.

Microphones need sound waves.

You can physically hear the audio sounds coming out of our device, like a hissing noise. The distortion fills the air with wight noise to cover the sound of your voice, effectively defeating a spy microphone from being able to listen to clear audio. The audio jammer is effective at masking your voice conversations, as the sound amplitude is higher than your voice?

Best budget anti surveillance jammer.

Our microphone stopper must be one of the best priced devices for protecting your sensitive conversations. The process works every time. The laws of physics rarely change, and sound waves require air to travel, our device fills the air with disruptive weight noise oscillating at the right sound frequency.

Ultrasonic sound jammers.

Ultrasonic sound wave jammer presents unknowns during operation, is the system truly stopping digital microphones? In tests, we found 50% of digital microphone nullifiers fail to stop digital microphones from working. It seems like high tech equipment is not always the best TSCM unless you opt for a safe ultrasonic sound jammer that works, and they’re usually very expensive.

Safety comes first.

Did you know? some ultrasonic sound jammers emit (RF) radio frequencies, some of which are not good for your health. Safe to say, radiation is often present when we use any electronic device or mobile phone. However, in most cases the output amplitude is regulated, offering a degree of safety associated with the device.

Some ultrasonic jammers & cell phone jammers breach recommended safety limits & they’re not licensed to use in the UK. Often emission levels are not highlighted so we recommend you check radio frequency outputs before you purchase the product. Our microphone stopper is totally safe, and it only uses audio sound. No (RF) radio frequency is used or present with this device.


  • Microphone stopper.
  • Built in Rechargeable battery.
  • Charging leads.
  • Audio attenuation.
  • Operation manual.

Alternative mike nullification, Anti recording device & Wight noise generator.

Weight 0.1 kg

Capri, Spycraft UK

Tech Specs

  • Effective range up to 150 sq. ft. (Acoustics may vary)
  • Battery: 9V.
  • Audio soundwave output.
  • No radio frequency output.
  • Dimensions: 4″ x 2.5″ x 1.5″.
  • Weight: 7 ounces.

Why people love our products

High-quality, ethically sourced products at affordable prices

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Special delivery UK ↗

Next day delivery, orders in by 2.30pm.
Private same day delivery, London & Gt Lon.

Payment options↗

secur payment system

Flexible payment options include.
Cards / PayPal / Bank / Bitcoin.

Service & Support ↗

service & support

UK based Service & support.
Standard guarantee & GDPR.

Credit cards Paypal bank wire Apple & Google pay
microphone stopper


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Microphone stopper anti recording device.
microphone stopper

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