- Stock: In Stock
- Model: Rabbler
Your phone is a microphone. So is theirs. Every meeting, every private conversation — someone could be recording. You won't know until it's too late. The Rabbler MNG-300 floods the room with speech-like audio that overwhelms microphones. Recordings capture noise, not words. Your conversation stays off the record.
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Key Features
- Speech-Like Masking Technology — Not white noise. Real human voice patterns compiled into dynamic audio that blends naturally. Harder to filter out than static noise. TSCM-designed by counter-surveillance experts.
- Defeats Phones, Bugs & Recorders — Overwhelms voice recorders, smartphone microphones, GSM/4G bugs, body-worn cameras, wired mics, and any device capturing audio within range.
- 3m Coverage Radius — Covers any table, desk, or conversation circle. Place it between you and your conversation partner. Everything within 3 metres becomes unintelligible on recordings.
- Pocket-Sized & Portable — Size of a cigarette pack. Fits in jacket pocket or bag. Carry it to meetings, hotels, consultations — anywhere privacy matters.
- 5hr Battery Life - Full day of meetings on a single charge. USB rechargeable. No cables during use.
- One-Button Operation - Power on, set level, talk. No app, no pairing, no technical setup. Works instantly.
Effective Against
- Voice recorders
- Smartphone microphones
- Radio microphones
- GSM/4G/5G bugs
- Body-worn cameras (watches, ties, pens)
- Wired microphones
- Any audio surveillance device
Where You'll Use It
Private Conversations On The Go
Coffee shops, hotel lobbies, airport lounges — public spaces where anyone could be listening. Pull the Rabbler from your pocket, set it on the table, and talk freely. Background chatter masks your words from nearby phones and hidden recorders.
Hotel Rooms & Rentals
You don't know what's in the walls. Hidden microphones in Airbnbs and hotel rooms make headlines regularly. The Rabbler ensures that even if something is recording, it captures nothing usable.
Sensitive Personal Meetings
Legal consultations. Financial discussions. Medical conversations. Any situation where the wrong recording could cause damage. Keep the Rabbler close and your words stay between you and the person across the table.
How It Works
- Power On — Press the power button. LED indicator confirms activation.
- Set Level — Adjust masking volume to suit your environment. Higher for louder spaces, medium for quiet rooms.
- Position & Talk — Place within arm's reach of all conversation participants. Speak in normal to low tones. The Rabbler does the rest.
Technical Specifications
- Model: MNG-300 Rabbler
- Masking Type: Dynamic speech-like noise (human voice patterns)
- Frequency Range: 300 – 3600 Hz
- Coverage: 3m radius
- Battery: 5 hours continuous use
- Power: 9V
- Current: Up to 120mA
- Charging: USB rechargeable
- Controls: Power, Volume, Level Indicator
- Dimensions: 85 × 53 × 21mm
Lawful Use
Legal to use for protecting your own private conversations. Does not record, intercept, or interfere with communications — it masks your speech from recording devices. User is responsible for lawful deployment in their jurisdiction.
What's in the Box
- 1 × MNG-300 Rabbler Voice Blocker
- 1 × USB Charging Cable
- 1 × Carrying Pouch
- 1 × User Manual
FAQ
1. Is this the same as white noise?
No. White noise can be filtered out by software. The Rabbler uses speech-like audio compiled from real human voices — it sounds like a crowded room, making it far harder to isolate your conversation from the masking noise.
2. Will it block my phone from working?
No. It doesn't jam signals or block calls. It creates audio interference that prevents microphones from capturing clear speech. Your phone still works normally — it just can't record usable audio.
3. How loud is it?
Adjustable. At medium levels it sounds like background chatter in a cafe. High levels are more noticeable but provide stronger masking. Set based on your environment.
4. Does it work against smartphone voice memos?
Yes. Any microphone within 3 metres — phone, recorder, bug, body-worn camera — captures the masking audio instead of clear speech.
5. Can I take it on a plane?
Yes. Battery-powered, no RF transmission, no interference with aircraft systems. Fits easily in carry-on.
6. How do I know it's working?
You'll hear the speech-like masking noise. Test it yourself — record a conversation with your phone while the Rabbler is active. Playback will be unintelligible.
Learn More
- Compare all Voice Recorder Blockers
- Bug detectors - find hidden devices before blocking them
- Read the full Buyers Guide for Counter Surveillance
