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K-BANK-OTG – Long Life Covert Audio Recorder 150 Days Standby & 160 Hours Continuous Recording

MAP-PRICE: $159.00

K-BANK-OTG – Powerbank Audio Recorder with Premium Sound Capture Capabilities

Professional Covert Audio Recorder with Continuous and Voice Activated Recording Options.

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 Powerbank
  • Continuous & Voice Activated Modes
  • Time & Date File Stamping
  • Playback on any Computer, Tablet or Phone
  • 576 Hours of Internal Storage 16GB
  • 150 Days of Standby Battery
  • Record Crystal Clear Sound from upto 40 FT away
  • Mic Sensitivity Adjustment Settings

Widely Used by Investigators for over 5 years.

The K-BANK Audio recorder is a tried and trusted solution to hundreds of Investigators who need the best sound quality available, the SVOS mic adjustment on the K-BANK ensures the device can be easily adjusted for Mic sensitivity.

Users can adjust the K-BANK to capture human voice, this ensures even a light whisper can be picked up from a distance.

With the ability to capture crisp clear sound from upto 40 Feet away and the covert appearance of this fully functioning Powerbank.

It is easy to see why so many Investigators use the K-BANK-OTG.

The ability to record sounds and then instantly connect the device to any iPhone or Android phone to playback audio, overcomes the need to get to a computer to listen to the captured content.

The OTG method of playback also ensures more privacy for the users when listening to audio files.

Specifications – K-BANK-OTG

Product Dimensions 4.30 x 3.10 x 0.77 inches
Batteries 1 Lithium Polymer batteries required
Memory 16GB
Storage 576 Hours
Standby 150 Days
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 Group & Pro Tips

Professionals – Use k-bank Powerbank as a covert audio recorder. As the device appears and functions as a Powerbank, no one will suspect it is an audio recorder and it can be used as a Powerbank until such a time comes to use the audio recorder.

Use it in meetings or even when you use the phone; you can record the discussions if you place the call-in speakerphone mode.

Concerned Parents – can use the Powerbank to monitor children and babysitters.

Just leave the device in your home when you are out and the Powerbank will capture all audio events whilst you are not around.

Employers – Need to keep an eye on your team and ensure productivity is at the right level even when you’re not around?

Use the Powerbank as your extra set of ears when you are out of the office.

Easy to use – Optimized for use with all Major Operating Systems including all major Smartphones.

This device is very easy to use, as this device works in VOX mode users just need to ensure the device is fully charged prior to use, turn on the device and the Powerbank is ready to record sound whenever it is detected. Users can also use the continuous recording option, please note this mode may record long silences and drain your file storage.

To review the files, users can use the supplied USB cable and insert the device into a Windows or Mac compatible computer to listen to recordings. Users can also use the OTG Adapter to connect the device to any smartphone and playback audio files through any iPhone or Android Phone.

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


Is this device Magnetic?


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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