A pocket-sized device went viral this week, promising to silence the always-listening world around you.Deveillance founder Aida Baradari posted about Spectre I on X, tapping into widespread fears that smartphones, smart speakers, and other devices secretly record conversations.The post gained over 3.6 million views in a little over a day.
The ambition is clear.Spectre I emits an inaudible signal that makes every microphone within range unable to capture intelligible audio.The portable audio security device creates a 2 metre protection zone around you.Currently in early development, the device is expected to ship in the second half of 2026.Pre-orders offer the device at $1,199.99 with a 30 percent off coupon that brings the price down to $839.99.
The technology itself is not new.Modern microphones, especially the compact MEMS mics inside phones, laptops, and smart speakers, can behave nonlinearly at very high frequencies. When bombarded with ultrasound, those non-voice signals can fold down into the audible band inside the mic's electronics, effectively masking real speech with what amounts to acoustic static on the recording.Researchers at the University of Chicago famously demonstrated a wearable microphone jammer using arrays of ultrasonic transducers, showing the approach can degrade recordings from a range of consumer devices without producing an audible whine to human ears.
What sets Spectre I apart, Deveillance claims, is artificial intelligence.The company says the unit can detect and log nearby mics by leveraging AI and signal processing. But this is where credibility fractures.Citizen Lab researcher John Scott-Railton posted a thorough thread on X, bringing Baradari's claims into question. He's particularly skeptical about the claim that AI can detect mics and generate disruptive signals with novel physics.
Scott-Railton noted that hundreds of similar products have been sold on Alibaba and in spy shops for years, or as DIY kits for $50 in parts. They use ultrasonic noise to overwhelm very close-by microphones. The real question is whether Deveillance can do something meaningfully better.Scott-Railton suspects that microphone detection is done via Wi-Fi and Bluetooth scanning (not a particularly innovative technique) and highlights a significant problem: many of the most insidious microphones do not emit detectable wireless signals.
The legal landscape is equally murky.While radio jammers are broadly illegal to market or operate in many countries, acoustic jamming sits in a grayer zone. It does not interfere with licensed spectrum, but local laws on surreptitious recording, harassment, or disruptive devices can still apply, particularly in workplaces and public venues.
Yet the broader anxiety driving sales is entirely rational. This week exposed just how poorly the industry has handled privacy in wearable devices.An investigation found that workers at a Kenya-based subcontractor are reviewing footage from customers' glasses, which included sensitive content, like nudity, people having sex, and using the toilet.A lawsuit brought by New Jersey resident Gina Bartone and California resident Mateo Canu accuses Meta of misleading consumers about how recordings from Ray-Ban Meta smart glasses are used, arguing that the glasses were pitched with phrases such as designed for privacy and controlled by you, while failing to clearly warn that human reviewers could watch clips captured in private settings.
In 2025, over seven million people bought Meta's smart glasses. The footage from those glasses is fed into a data pipeline for review, and users can't opt out.
Here lies the tension at the heart of this moment. Yes, Spectre I's claims deserve scrutiny; yes, the physics of acoustic jamming have real limits.No jammer is a silver bullet. Devices with strong physical isolation, specialized directional microphones, or aggressive filtering may be less affected. Old-school wired dynamic mics can be harder to disrupt with ultrasound than tiny phone mics. Spectre I also won't stop cameras, keystroke loggers, or the metadata trails from your phone.
Yet the impulse to buy such a device is understandable. The real problem is not technical but institutional. Manufacturers have designed always-listening devices without meaningful consent frameworks, transparent disclosure, or genuine user control. A $1,200 jammer is a symptom of an industry that has failed to police itself.
The solution, reasonably, lies not in consumer gadgets but in stronger accountability.Real credibility for any privacy device will hinge on transparent testing, with third-party evaluations that quantify effectiveness across different phones, laptops, and smart speakers; characterise coverage area and battery life; and assess comfort and safety for people and pets. Regulators should demand the same rigour from wearable manufacturers before allowing them to market privacy claims at all.