Powerbank Audio Recorder w/ 250 Days Standby Power & Built-in Magnet

Powerbank Audio Recorder w/ 250 Days Standby Power & Built-in Magnet
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Powerbank Audio Recorder w/ 250 Days Standby Power & Built-in Magnet

Powerbank Audio Recorder w/ 250 Days Standby Power & Built-in Magnet


Are you looking for a discreet audio recording device that can capture high-quality audio without raising any suspicion? Look no further than this innovative power bank audio recorder. With an impressive 250 days of standby power and a built-in magnet, this device is perfect for long-term audio surveillance of homes, offices, and other spaces.

The power bank audio recorder is equipped with advanced voice-activated recording technology, which ensures that only relevant audio is captured and saved. This feature saves you from the tedious task of listening to hours of useless audio, allowing you to focus on the information that truly matters. In addition, the device has a high-capacity internal memory that can store up to 576 hours of audio.

One of the most remarkable aspects of this device is its ease of use. Simply turn it on, and it will start recording automatically when it detects sound. The device also comes with a convenient USB port for easy data transfer and charging. The compact size of this device makes it easy to conceal and hide in plain sight, giving you the ability to capture audio without anyone knowing.

Whether you need to record meetings and interviews, or gather evidence for an investigation, this power bank audio recorder is the perfect solution. With its advanced features and discreet design, you can trust that it will provide you with the audio surveillance you need, without anyone knowing.

  • The K-MIC-OTG professional voice activated audio recorder, designed for all types of recording needs, includes headphones so you can listen to audio recordings anywhere, privately.
  • Functions as an MP3 player and Powerbank; K-MIC-OTG is an Ultra Covert Professional Audio Recorder with a premium mic which can record audio from upto 40 feet away.
  • Playback recordings on phones, tablets, or computers or playback using headphones, directly from the device.
  • For playback through any Phone or Tablet users can connect the included OTG adapter to listen to recordings.
  • The K-MIC-OTG is packed with many unique features which make it an ideal tool for many types of recording needs.
  • Functioning as both a Powerbank and MP3 player, K-MIC-OTG can easily blend into any environment and record in plain sight without anyone being the wiser.
  • K-MIC-OTG has amazing battery performance and can record continuously for upto 550 hours on a single charge or upto 250 Days in Standby mode, storage for upto 688 hours of Audio files on the 16GB Internal Memory
  • Users can choose between 3 recording modes, continuous, voice activation and scheduled recording.
  • The K-MIC-OTG has ultra-strong housing and a built-in magnet allowing users to fix the device to any metal surface or frame.



  • 250 Day standby Battery Life
  • Stores up to 688 hours of Recordings.
  • Functional 5000 mAh Power Bank to Power your Phone or Other Devices
  • Functional MP3 Player - Playback audio recordings & listen to MP3 Music – Ultra Covert
  • High quality microphone picks up conversations from as far as 40 feet away.
  • Voice Activated, Continuous recording & Scheduled recording Modes.
  • Time and Date Stamp
  • Hidden Magnet for Covert Deployments
  • Listen to Recordings using the included headphones or connect to almost any Computer, Phone, or Tablet
  • Control Microphone Gain, Voice Activation Noise Level Trigger, File Size and Bitrate, Recording File Format (MP3 or WAV), and More
  • Schedule Daily Recordings - Set the Time, Length, and Number of Days to Automatically Record
  • Customized Settings - Includes a Settings App for Windows or Manually Change Settings Using Mac or Linux


Customize the Advanced Settings to Fit Your Needs


Microphone Sensitivity

Change the mic sensitivity (GAIN). Adjust the mic to compensate for background noise, distance, and other environmental factors.

Recording Mode

Choose between Continuous Recording or Voice Activated Recording Modes.

File Bitrate

The recording bitrate can be compared to the framerate of videos. Lower bitrates mean smaller file sizes but decreased recording quality. Higher bitrates increase recording quality but take up more room on the recorder.

File Format

Choose between MP3 and WAV. MP3 files are compressed and take up less room but can mean lower quality. WAV format is uncompressed, meaning a higher quality but larger file size.

File Length

Choose how long each recording is. Longer recordings risk losing more recording time if the battery runs out before the recording can be saved.

Recording Timer

Set to automatically record for a specific length of time each day for up to 999 days.

Time & Date Stamp

Sync the time and date of the recordings with your computer.



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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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