Pen Microphone

It is completely natural to arrive at a meeting with a pen clipped into the top pocket of a shirt or jacket, making this pen microphone an ideal covert accessory from our microphones and amplifiers range.

Discreet Pen Shell – External Wired Connection

To create this covert audio solution, the internal writing components of a standard ballpoint pen have been removed and replaced with a specialised high-gain microphone capsule.

While the unit no longer functions as a writing instrument, it preserves a completely innocent, everyday appearance.

The thin microphone lead emerges discreetly from the tip of the pen housing where the nib would normally sit.

At the end of this concealed wire is an audio jack plug designed to connect directly into an external audio recording device.

Optimised for Close-Range Audio Pickup

The sensitive internal microphone is specifically tuned to capture clear room speech within a 3-metre (10-foot) radius.

This makes the pen microphone ideal for one-to-one conversations, interviews, or close-proximity business meetings.

Keeping the pen clipped on display in a top pocket ensures the microphone element remains unobstructed during operation.

Because the unit relies on external recording hardware, it produces zero noise and has no internal electronics that could betray its presence.

External Audio Recorder Compatibility

This unit acts strictly as a dedicated audio input device and requires a separate recorder to capture and save sound.

The small lead allows your connected recording device to remain completely hidden out of sight inside an inner jacket pocket.

If you require a compatible unit, you can pair this microphone with options from our voice recording devices category.

Provided you deploy the device for lawful purposes, the situations that suit using a voice recording device are virtually endless.

If you need advice selecting the correct connector for your pen microphone, please contact our expert team today.

Can the pen microphone record and store audio on its own?

No. The pen microphone contains a specialised microphone capsule only and must be connected to an external voice recorder to capture and store audio files.

Does this device still work as a normal writing pen?

No. The internal ink refill and writing mechanisms have been removed to accommodate the microphone capsule and wire. It is strictly a disguised surveillance accessory.

How do I choose the correct jack plug size for my pen microphone?

If you are purchasing one of our digital recorders, select the standard 3.5mm stereo option. If you are using your own recorder, check your device manual to confirm whether it requires a 3.5mm or 2.5mm microphone input.

What is the effective audio pickup range of the device?

The microphone is optimised for close-proximity recording, capturing clear speech within a 3-metre (10-foot) radius in standard room environments.

Where should I position the pen microphone for the best sound quality?

The pen microphone is best worn clipped into a top shirt pocket, jacket breast pocket, or attached to a clipboard facing toward the person speaking.

Does the unit require batteries to operate?

No. The device draws minimal plug-in power directly through the audio lead connected to your external recording unit.

Will the pen microphone show any lights or make noises when plugged in?

No. The device is entirely passive and operates silently without any LEDs, indicator lights, or operational sounds.

• This item is an external microphone attachment only. You must connect it to a compatible digital voice recorder to record audio.
• The pen casing is an authentic disguise only; it does not contain ink and cannot be used for writing.
• Ensure you select the correct jack plug size (3.5mm or 2.5mm) from the menu to match the external microphone socket on your recorder. The majority use a 3.5mm input.
• Pen body styles and clip finishes may vary slightly based on component availability during manufacturing.

• Authentic pen housing disguise designed to be clipped into a top shirt, suit jacket, or notepad pocket.
• Houses a specialised high-sensitivity microphone capsule in place of internal ink and writing components.
• Concealed wired output lead exits discreetly through the front nib opening to link with external recorders.
• Optimised audio sensitivity range captures clear human voice within a 3-metre (10-foot) pickup radius.
• Passive audio design relies on external recorder power, eliminating internal battery maintenance.
• Produces zero operational noise, indicator lights, clicks, or visual signals while active.
• Available with custom jack plug configurations (3.5mm stereo/mono or 2.5mm) to suit various recorder inputs.
• Allows the main recording unit to remain completely concealed in an inner jacket pocket or bag.
• Ideal hands-free solution for face-to-face meetings, interview recording, and close-proximity surveillance.

• Device Type: Covert External Wired Microphone Capsule
• Visual Housing: Non-functional standard executive ballpoint pen body
• Audio Pickup Type: Omnidirectional condenser microphone
• Effective Pickup Radius: Up to 3 metres (approx. 10 feet) in quiet environments
• Frequency Response: 50 Hz – 16,000 Hz tuned for human voice clarity
• Connection Cable: Flexible, thin lead exiting via pen nib aperture
• Connector Options: 3.5mm Stereo, 3.5mm Mono, or 2.5mm Jack Plug (selectable)
• Power Source: Powered via connected audio recorder line/mic input (Plug-in Power)
• Internal Memory: None (Requires external recording device)
• Weight: Approx. 18 grams