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K-USB-OTG – Covert Audio Recorder USB Drive 8GB 288 Hours

MAP-PRICE: $109.00

K-USB-OTG – Premium USB Audio Recorder with advanced Mic chipset technology.

Dual Function device works as a USB drive and Audio Recorder

25 Days Standby Battery &

24 Hours of continuous recording on one charge.

8GB Internal Storage – 288 Hours Storage Capacity

OTG Optimized – – Review Audio through any Computer, Tablet or Phone

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Trusted by Hundreds of clients domestically and internationally.


What you need when you need it.


Support hours:

Monday to Friday


Orders received by 1PM MST go out the same day for all US clients.

All Orders ship from our Head Office location in Draper, Utah


PBN-TEC adopt a strict MAP pricing policy

  • Covert Professional Audio Recorder USB Drive
  • Continuous & Voice Activated Modes
  • Time & Date File Stamping
  • Playback on any Computer, Tablet or Phone
  • 288 Hours of Internal Storage 8GB
  • 25 Days of Standby Battery
  • Record Crystal Clear Sound from upto 40 FT away
  • Mic Sensitivity Adjustment Settings
  • 24 Hours Continuous recording


USB Drive with Professional on board Audio Recorder VOX – 25 Days

The KUSB USB Audio recorder with 25 days standby battery is an extremely versatile tool which is ideal for anyone wishing to record audio covertly.

The device looks exactly like a standard USB Flash drive and can even store data like an ordinary USB storage device.

Under the hood of this device is a professional audio recorder with the ability to record upto 288 hours of audio files on the 8GB memory capacity.

This tiny device can record crystal clear audio, even if it is hidden in a pocket or a bag.

The SVOS audio technology inside this audio recorder means the device is calibrated to detect for human sound.

KUSB-OTG can record in two modes:

Voice Activated Mode – Vox

Continuous Recording mode – Upto 24 hours continuous recording.

Easily switch modes using the covert mode switch located on the end of the device.

With a range of up to 40 ft, the microphone on this device is capable of recording conversations in virtually any environment and can also perform well in noisy environments.

K-USB-OTG has onboard software, users adjust the sensitivity of the Microphone and make the device perform better in different environments.

The tiny size of this device and excellent microphone makes it ideal for concealment.

Simply slip it in your shirt pocket or even jeans pocket to capture conversations with crystal clear clarity.


Listening to your Audio

Compatible with both Windows and MAC, users can listen to their audio recordings by using either a Windows or MAC computer.

OTG optimized – Users can also listen to recordings directly through ant iPhone or Android phone, just connect the device to the included OTG adapter and connect it directly to your phone to listen to recordings without needing to get to a computer.


Excellent Features

The KUSB Audio recorder has Voice activation recording and Time and Date stamping.

Combining these professional recording features with outstanding standby battery and excellent 40 ft Audio capture range makes this device suitable for all types of users who need to record audio.


Specifications – K-USB-OTG

Product Dimensions 2.78 x 1.35 x 0.48 inches
Batteries 1 Lithium Polymer batteries required
Memory 8GB
Storage 288 Hours
Standby Upto 25 Days in Voice Activated Mode
Power USB
Time & Date Stamp Yes
Voice Activated Mode Yes
Microphone Capture Range 40 FT
Auto Level Control – ALC Yes
Warranty Period 1 Year
Country of Origin KOREA

User Groups & Pro-Tips

An excellent tool for covert and overt use, the tiny form factor and dual use functionality of this device ensures users can use this tool without raising any suspicion.

Extremely useful for business professionals who want to have a premium audio recording solution which can be used in plain sight without anyone noticing.

The device can be used for both normal USB drive storage and premium audio recording functionalities.

Requirements & FAQ


  • System Compatibility: Windows Vista, Windows 7, Windows 8, or Windows 10 & 11 & Mac
  • Media player app on phone or computer to play *.MP3 files


Can this devices microphone be adjusted for sensitivity?

Yes, using the onboard software, users can adjust mic sensitivity.

Can this device be used as a wearable audio recorder?


Is this device compatible with Windows & Mac?


More Questions?

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KUSB-OTG Datasheet