Covert Desk Calculator Audio Recorder w/ Voice Activation


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Place on your desk!

Black Vox Calculator is a professional grade covert voice activated recorder that is a functional calculator. It has a lengthy 75-day standby battery life or 72 hours of recording on a single charge, 8 GB of internal storage that can record up to 288 hours, and it functions as a real calculator so you can hide it in plain sight. These features and more make this the perfect black box recorder for homes, offices, or just about anywhere.


Covert Desk Calculator Audio Recorder w/ Voice Activation


 battery powered



  • Completely Cover – The power switch and USB port are hidden inside the casing with no lights or other indicators showing it’s recording
  • Confidence – You can be confident that it is on and recording
  • Covert – Put it anywhere you might put a calculator
  • Voice Activated – Records conversations from up to 26 feet away
  • Built-in Battery – Charges automatically when plugged into a USB wall charger or computer with a 75-day standby battery life
  • No Special Software Required – Works on Windows or Mac computers (Windows is required to set the time-stamp)


The Black Vox Calculator voice-activated recorder was designed for long term deployment. It will last over 2 1/5 months on one charge in standby mode and will record up to 72 hours of recordings on one charge.


 This high tech surveillance equipment can easily be charged through the 2.5mm jack to USB cord that is included by plugging it into your computer or laptop or a USB wall charger. High-quality voice recording from up to 26 feet away means you can capture every conversation.

black calculator hidden audio recorder

You can set the time stamp of recordings to your local time using a Windows computer. This way, you will know exactly when each recording took place. Easily listen to or transfer recordings from the 8 GB of internal storage through USB. This product was only available to law enforcement in Europe but is now available to the public in the US. Made in the United Kingdom.


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    • 75 Day Standby Battery Life – Rechargeable internal battery means your recorder can be in standby mode for over 2 1/2 months and recording time of up to 72 hours
    • 288 Hours of Digital Voice Recording Capacity with an Internal 8 GB Drive – Recordings are saved as MP3 files on the recorder: plug into a computer to listen to, copy, or delete recordings
    • Voice Activated Audio Recording from up to 26 Feet Away – High quality mic allows for clear conversation recordings from far away
    • It’s a functional solar powered calculator so no one would suspect it is a voice recorder
    • USB Port
    • System Compatibility: Windows Vista, Windows 7, Windows 8, Windows 10, or Mac
    • Size Approx. 6" x 4" x 3/4"
    • Small Phillips Screwdriver
    • Calculator Voice Recorder
    • Manual
    Secure payment options
    secure transactions
    Delivery of Goods
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