info@cool-mania.eu Do you have a question?
Nothing here yet

Click the heart on a product – it will be saved here, along with its price, discounts and availability.

Spy equipment

Spy earpiece with bluetooth 20W amplifier + SIM (in the shape of a credit card)

Spy earpiece ✅ with bluetooth 20W amplifier + SIM (in the shape of a credit card), into which you insert a mobile SIM card.

$ 202.80
Price excl. VAT $ 164.88
Products availability:
in stock
Products are in stock, ready to send. Estimated delivery time 3-7 days.
Yes! We Ship To US
How can you pay? Cards Klarna Bank Crypto
$ 202.80

Buyer protection

Free exchange of goods within 30 days
Warranty for products - 24 months
Money back guarantee within 14 days

Accessories

Why buy from us?

Spy earpiece with bluetooth 20W amplifier + SIM (in the shape of a credit card), into which you insert a mobile SIM card. You can simply place the credit card into your shirt pocket or on clothing. This spy earpiece set is very comfortable and inconspicuous. Activating the device is very simple. Just insert the SIM card into the bluetooth box in the shape of a credit card and turn on the device. The control box in the shape of a credit card does not contain any other cables because everything is built-in (microphone and amplifier).

Everyone knows the situation in your life when you would appreciate that someone could advise you or help you in a difficult situation and without anyone knowing about it. It is made for presenters, TV and radio hosts, speakers and for discreet communication with your team, as well as for other situations. We certainly do not support its misuse for cheating in exams, at school, etc. The improved spy earpiece is a revolutionary device that allows you to connect with someone remotely using your mobile phone, but without anyone knowing about it.

Bluetooth wireless spy earpiece

For a good signal to the earpiece and a good audio transfer to the built-in microphone, the control device must be as close as possible to the mini earpiece and the mouth. It is best to put it in the pocket of a shirt, vest or jacket. Insert the mini earpiece into the ear and using a high-performance amplifier with 20W power the signal is transmitted wirelessly to the receiver, where the signal is converted into voice. For communication, a sensitive microphone built into the device is used. After calling the SIM card, the device automatically answers the call and you can start communication.

We recommend that customers do not buy cheap, poor-quality imitations of the spy earpiece from unverified sellers.

The guarantee of the spy earpiece - 24 months. Expert advice and service.

Spy earphones are shaped to fit into the eardrum -  to be inconspicuous. It is made of non-toxic material. Spy earpiece for sale at a great price you can buy online in our e-shop. Look at our offer and find what you are looking for.

spy earpiece

The latest improved model of the popular spy earpiece. Compared to the previous model it has an improved anatomical shape, to be able to completely seal the ear against sound leakage into the environment. The earpiece consists of the latest sensitive receiver (coil), a stable micro speaker with a very bright and clear sound with minimized noise. The earpiece is powered by one miniature button battery. You can easily insert the earpiece into the ear canal. A transparent hook is attached to the earpiece, with which you can take the earpiece out of the ear. For even easier handling of the earpiece we offer in our e-shop magnetic tweezers. Battery with a battery life up to 7 hours included.

spy earpiece wireless installation

Features:

plus Professional design, excellent sound quality
plus Ergonomic design, convenient handling
plus Battery life up to 7 hours
plus Bluetooth connection to a mobile device.
plus Simple operation and receiving calls.
plus Hands-free support for two-way communication.

  • Frequency Response180Hz-5600Hz
  • Distortion rate <2%
  • Output115 db
  • Optimum value40 db
  • Sensitivity<100 db
  • Operating current0,65 mA
  • Noise20 db
  • Amplifier20W
  • Talk time per one charge12 hours
  • Operating temperature-10 ° C - 60 ° C
  • Battery typeSR416SW 337
  • Battery lifeup to 7h
  • Dimensions / weight13x6mm / 0,5 g
  • Pack size / weight52x42x14mm / 0,8 g
  • 1x Spy earpiece
  • 1x Control box (in the form of a credit card) with integrated amplifier and microphone on the SIM
  • 1x USB cable
  • 1x Battery
  • 1x Manual

important notice

Why buy spy technology through our e-shop?

We test for a few weeks each new product and after the final inspection it is included in the sale
Our offer is not the biggest on the market, but we offer only products tested by us - quality and reliable spy products
We are not the cheapest, but our customers are satisfied customers. 
Many years of experience in selling spy products (spy cameras, spy equipment) over 15 years of experience
Expert advice on installation and adjustment of products (via telephone or email)
We offer 24 months warranty on all products and free return within 14 days from delivery
Our cooperation does not end with the sale, we offer qualified customer service
In case of a complaint, we try to shorten the time for the processing to a minimum (usually 7-14 days). If the goods are non-functional, a solution is provided with an exchange for a new piece

NOTE: If you find competing products (with significantly lower prices) that may have the same design, but used components such as amplifiers, batteries, etc. can be low cost (less expensive) version of the product, so they have a significant impact on the total quality and operating life. We recommend customers to consider the profitability of investments and the purchase also according to this fact.

Product rating

99 %

Secret headphones with bluetooth card

  • The product is of high quality.
  • And I use them.
  • The card should be very small

The product is of high quality and very usable.
It came out as described by the company.

Albert Dalipaj

Translated from: Albanian

Spy earpiece with bluetooth 20W amplifier + SIM (in the shape of a credit card)

Write a review

Spy earpiece with bluetooth 20W amplifier + SIM (in the shape of a credit card)

How satisfied are you with the product?
Last step
Photos optional

We publish your review right away. If you write it in another language, we translate it automatically and the original stays available.

Product discussion

Aljaževa Street 1

Hello, I would like to know if, considering that we insert a Sim card into the "bank card", we also need a phone for it to function? And in what time could the handset be with me?
Thanks for the reply in advance

Translated from: Slovenian

No, you don't need the phone anymore.

Translated from: Slovenian

Card

Hello, I would like to ask what are the dimensions of the "credit card".
Thank you in advance for your answer

Translated from: Slovak

Good day
8.5 cm high and 5.5 cm wide

Translated from: Slovak

Query

Hello, thank you for your reply.
So is it enough to connect a mobile phone to an amplifier in the shape of a credit card and then it is possible to play mp3, video or call?
Am I understanding this correctly?
Thank you

Translated from: Czech

Yes exactly.

Translated from: Czech

Question

Good day,
I would like to ask if this type also supports other methods of receiving information than through calls. For example, starting a video file from a mobile phone.
Thank you and have a nice day.

Translated from: Slovak

Hello, yes of course. All audio tracks are transferred (be it mp3, video, call, etc.)

Translated from: Slovak
Spy earpiece with bluetooth 20W amplifier + SIM (in the shape of a credit card)

Ask in discussion Reply

Spy earpiece with bluetooth 20W amplifier + SIM (in the shape of a credit card)

We only publish your name. We’ll e-mail you when someone replies.

Available in other countries too Order it on your country's website, in your language

Check also:

History of searched products

How we test

Our range isn't the biggest on the market. But every product in it has passed through the hands of our team in Banská Bystrica.

  1. We choose

    We follow what's new and only test products that make sense.

  2. We test for weeks

    We use every new product for several weeks, in our shop and at home.

  3. Final check

    It goes on sale only after a final check. What doesn't pass, we don't sell.

  4. Help after you buy

    A manual in the box and help with the setup by phone or e-mail.

More about how we choose
“We're not the cheapest, but our customers are happy.”
The Cool Mania team, on the market for more than 15 years
The Cool Mania team, on the market for more than 15 years

Extra services for goods