Advanced Audio Recording Pen 8 GB - 288 Hours

Covert Audio Recorder Pen – Swivel Switch Mechanical Activation 8GB 288 Hours OTG Optimized – – Playback Audio through any Computer, Tablet or Phone
Advanced Audio Recording Pen 8 GB - 288 Hours
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$249.00 $148.00
(You save $101.00)
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Advanced Audio Recording Pen 8 GB - 288 Hours

Advanced Audio Recording Pen 8 GB - 288 Hours

$249.00 $148.00
(You save $101.00)

K-Pen-OTG provides users with a premium Pen based covert audio recording solution with many advantages over similar types of covert recording solutions built inside a Pen.

There are no LED lights on the K-PEN-OTG, this Premium pen has a mechanical activation function, the top of the Pen can be switched to Continuous recording mode or sound activation mode.

Users can record audio for upto 31 hours on a single charge or upto 30 days of recording in standby mode if the device is set to sound activation.

To recharge the internal battery users just unscrew the middle of the Pen and a USB input is revealed, recharge the device using any USB Port and electrical outlet with USB Port, charging can be completed within 2 hours.

K-PEN-OTG can detect and record sounds upto 40 Feet away, users can also adjust the microphone sensitivity to focus more on specific sounds such as Human voice, adjusting the microphone sensitivity can be done by launching the built in software on the device. Other configuration options on the software include the ability to set the time and date file stamping of audio recordings and adjust Audio recording formats.

The K-Pen can record in 3 Audio Formats

Depending on the Audio Format a user selects, storage capability will be different, below is some information on the audio formats and storage capabilities of the K-PEN-OTG

  • PCM mode – recording in this mode can achieve up to 24 hours of recordings using the 8GB onboard memory.
  • XHQ mode – in this mode, the device can record up to 144 hours of audio.
  • HQ mode – in this mode, 288 hours of audio files can be stored.


  • Used by many professionals for Covert Audio recording, the device can sit in plain sight inside a shirt pocket and record without anyone noticing.

  • The Premium microphone has been fully tested and users can even put the pen inside a pocket and record.
  • Users can easily activate the device and leave it unmanned in an location to record the locations audio whilst not being present.
  • OTG optimization ensures users can connect the device directly to any iPhone or Android phone and listen to recordings without needing to connect the device to a PC/MAC.
  • To Set up Time & Date Stamping – This can only be achieved through a Windows based Laptop or Computer.

 Tech Specs

Product Dimensions 0.56 × 0.56 x 5.25 inches
Batteries 1 Lithium Polymer batteries required
Memory 8GB
Storage 288 Hours
Standby 30 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

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Shipping & Returns

Audio devices may not be used to violate the privacy rights of others. In no way will Spy Associates or its subsidiaries or partners be held responsible for inappropriate use of these products.

FREE Ground Shipping On All Items Over $199

Receive free ground shipping on all items we carry. Depending on your location, carrier may vary depending on maximizing delivery speed to your location.

Same Day Shipping - Order By 2pm EST Monday - Friday

Your Order will be given to the shipping carrier the same day you place the order, not including national holidays & weekends. Shipping days do NOT include weekends UNLESS you order SATURDAY DELIVERY at checkout. Any order placed after 2pm weekdays or on Saturday / Sunday will be shipped out the next business day.

Some custom built products may require up to 48 hours, which includes custom audio add-ons that may require 72 hours. You will be notified of any delays as soon as possible.

International Shipping & Customs

YES! We ship worldwide. On International Orders, any CUSTOMS FEES are the responsibility of the purchaser NOT SpyAssociates. Every country's import rules are different, so it's impossible to guess how much, and if any fees may apply.

Return Policy

We test all of our products before shipping to ensure they are in working order.

Your Satisfaction Is Our Number One Concern


All products which are special ordered by the person ordering and are NOT subject to cancellations. Due to the nature of our product line, returns will only be accepted for products damaged upon shipment to the customer*. All returns must be authorized by before product(s) is returned. will replace, refund, or credit your account for returned product(s) at's discretion. We have been forced to implement this policy because of the attraction of our products to unscrupulous people who return products after they have profitably gained from the short-term use of the products.

*Special exceptions may be made on a case by case basis determined by In this event, returns are subject to deductions for shipping costs and a 25% restocking charge and must be returned within a ten (10) day period from date of receipt of product(s). NO refunds will be given for products returned without explicit permission from

You Are Guaranteed QUICK & ACCURATE Service

Any return must be authorized by a representative of and under no circumstances will returns be accepted otherwise. Authorization and shipping instructions must be obtained from No returns will be authorized after ten (10) business days of receipt of product(s) by the customer, unless found to be defective, in which case we will replace at no charge once returned with authorized RMA.

We at strive to offer our customers the best products at the best possible prices. Due to the nature of the products, returns will not be accepted unless the product is found to be defective or unless otherwise explicitly stated on the specific product page.

Shipping & Handling Charges Are Non-refundable.


Every product receives FREE LIFETIME SUPPORT. We guarantee all products to be free of defects in workmanship and material for 90 days (some manufacturer's warranty is one (1) year or lifetime - please see info on the page for specific product's details) after sale to the customer. We will replace or repair the product(s) at our option providing there is no evidence of customer misuse, or alteration.

This device will only connect to 2.4 GHz Wi-Fi Networks with passwords that do not contain special characters.

We are unable to guarantee Wi-Fi connection will work with all routers. Although most networks are compatible, certain routers enact stricter security measures that may block remote connections to the camera. Some examples likely to experience these issues are hotels/motels, corporate networks, 4g hotspots, open wifi networks like Starbucks, etc. Some WIFI units require the unit to be paired with a router if the end user is wanting to look at the livestream or receive motion alerts. Only compatible with Android 6 & up, iOS 8 & up. These items will need to format the MicroSD Card before use. This is done through the app.

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