. Ultrasonic Anti-Recording Jammer for Private Conversations<

Ultrasonic Microphone Blocker for Confidential Meetings

Ultrasonic anti-recording jammers introduce ultrasonic interference that disrupts the way nearby MEMS microphones, digital voice recorders, smartphones, wearable recording devices, and AI speech capture equipment receive spoken audio.

Executive meetings, legal consultations, financial negotiations, product development reviews, interview rooms, medical consultations, and NDA discussions all involve information that exists only in spoken form.

These audio bugs signal blocker use ultrasonic signal technology to generate high-frequency interference, affecting microphone reception and making recorded conversations unclear and difficult to analyze.

Indoors, the conversation remains natural and fluent, but the recording becomes useless for transcription, speech analysis, or unauthorized recording.

X66 Utrasonic audio jammer
Save up to $204.74
X66 Ultrasonic Audio Jammer for Anti-Recording Protection with 66 Emitters & 8m 360° Coverage
Discover the X66 ultrasonic audio jammer with 66 ultrasonic emitters, 360° coverage, and up to 8m anti-recording range. Designed to interfere directly with microphone recordings using advanced ultrasonic masking technology.
Spherical ultrasonic recording jammer with 48 built-in ultrasonic transmitters
Save up to $298.14
X48 Spherical Ultrasonic Recording Jammer with 48 Transmitters | 5.1m
This chandelier-shaped ultrasonic voice recorder jammer features 48 built-in ultrasonic emitters, offering 360-degree coverage, silent operation, and wireless remote control capabilities. Its pendant-style design facilitates discreet installation while creating a broad ultrasonic protection zone with a coverage radius of up to 5.1 meters.
Compact Ultrasonic Voice Recorder Jammer
Save up to $247.81
AUP-1 - Compact Ultrasonic Microphone Recorder Disruptor
The AUP-1 is a compact ultrasonic jammer with 8 transmitters that block audio recordings within 0.5–1.5 meters. It includes a power bank and remote control with up to 50-meter range.
Bluetooth speaker and silent interference mode audio signal blocker
Save up to $494.16
Ultrasonic Audio Jammer with Bluetooth 5.0 Speaker 20W
X33 ultrasonic anti listening device combines microphone blocking technology with a Bluetooth 5.0 speaker. Featuring 20kHz–40kHz ultrasonic interference, 6600mAh battery, and portable design for audio privacy protection.
Ultrasonic Recorder eavesdropping devices jammer
Save up to $401
X21 Recording Jammer – 21 Ultrasonic Emitters with Remote & Voice Control
The X21 uses 21 ultrasonic emitters to block audio recording devices, rendering smartphones, voice recorders, and hidden microphones powerless within a 2-6 meter range, controlled via buttons, remote, or voice commands.
Audio jammer with 37 ultrasonic emitters and 5 meter jamming range
Save up to $361.86
X37 Ultrasonic Recording Jammer with 37 Emitters and 5m Range
Audio bugs jammer features 37 ultrasonic emitters, 360° coverage, 5m operating range, independent control switches, and an 8000mAh rechargeable battery for ultrasonic recording jamming.
Voice recorder jammer with wireless remote control and adjustable power control
Save up to $323.75
Ultrasonic Recording Jammer with 270° Coverage and Adjustable Power Control 66W
Ultrasonic anti-recording signal blocker with 270° coverage, 60W output, smooth power adjustment, rechargeable battery, and speaker-style design for discreet voice privacy protection.
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Important things

1.Please install the antenna before using the signal jammers

2.Most Portable cell phone jammers have dip switches on the side. After turning on the main power switch, activate the dip switch—the red or green light will indicate it's on. Each switch controls a specific signal (Refer to the frequency table on the packaging for details).

3.Avoid using the jammer while charging.

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