SBL01-ST bluetooth covert communication system

Product No.:
ca. 3-4 days ca. 3-4 days
653 pieces
Battery amount:
Choose the earphone:
95,00 EUR
incl. 19% tax excl. Shipping costs



This is our new bluetooth covert communication system. It creates more power than the other any bluetooth transmitter to drive the micro covert earpiece. With the built-in 3 Watt amplifier now offers more stronger output audio signal and same power consumption. To use bluetooth transmitter with wireless earpiece you will get louder sounds and further transmission distance. SBL01-ST bluetooth transmitter compatible with any micro earpiece from our shop.

Advantages of new Bluetooth transmitter and wireless micro earpiece

all in one pack Easy cheat - all you need is included.
Includes everything you need to covert wireless communications can start.
One set includes micro earpiece, Wireless bluetooth neck loop, charger socket and USB cable,  
a battery for the micro ear and user manuel in English
new design neckloop New design and shape
Build-in 3watt amplifier which produce very strong power to wireless earpiece.
Compact and slim size offers comfortable use and well hidden under your clothes
Bluetooth transmitter is availlabel in 2 colors (skin and black)
various wireless earpieces Build-in 3.5 watt amplifier
With the build-in amplifier, the sound quality is significantly better and higher transmission distace.
Although bluetooth transmitter is in your pocket, the quality is still good.
various wireless earpieces The choice between many different types of micro ear
Standard model for SBL01ST bluetooth transmitter is SE02S micro ear skin.
You can also choose other models such as SE01, SE02B(black or skin), SE03(black or skin), SE04(pro ear)
2 batteries are supplied as standard. More batteries can be ordered!
”mute Mute function key makes it posible to instant stop audio transmission to avoid detectors.
Telephone conversation remains active even if you press mute button.
SOS function key make it to posible to remind your partner.
Just press SOS Button and your partner will hear a signal immediately.

Download Manual Download user's manual of SBL01-ST wireless bluetooth transmitter

SBL01-ST bluetooth transmitter package includes: 

1 x Bluetooth transmitter with 3,5 watt amplifier
1 x Inductive loop
1 x Charger for bluetooth transmitter
1 x USB adapter cable

1 x Covert micro earpiece SE02 (you can also choose other models)
2 x Batteries for micro earpiece (you can also order more)
1 x Small brush and holl out tool for the battery
1 x User manual in English or German


SE01 – Mini black earpiece

Completely invisible in ear canal. Economic price. Applicable to all of inductive transmitters.

Completly invisible when in ear canal
Wireless receiver drove by all inductive transmitters
Most economical invisible earpiece
Powered by tiny #337/#416 button battery
5-6 hours battery life support
Earpiece size: 13x7x6mm                                                    
more information...                                                                              

SE02 – Invisible Micro ear black or skin

Most populer invisible earpiece. Cleare audio output with 2 colors ends. Applicable to all of inductive transmitters.


Skin and black colors option
Completly invisible when in ear canal
Wireless receiver drove by all inductive transmitters
Clear voice output with high quality mini speaker
Most populer covert earpiece
Powered by tiny #337/#416 button battery                             
5-6 hours battery life support
Earpiece size: 13x8mm / 0,5g
more information...

SE03 – Spy Nano earpiece - black or skin

The smallest hidden earphone in the world - 9x6x6mm. Pair with all induction transmitters.


Smallest size with loud sound and clear voice
Skin and black colors, completely invisible deeply into ear canal
Semi-circle tail enhanced covert function
Sensitive wireless receiver with clearer voice
Powered by tiny #337/#416 button battery
5-6 hours battery life support
Earpiece size: 9x6x6mm / 0,5g
more information...

SE04 – Professional invisible wireless earpiece

Optimum anatomic design. Top grade coil and speaker with changable volume. Produce crystal clear voice.


Slim size, light weight, easy to conceal
Comfortable for both ears with an optimum anatomic design
Top grade coil and speaker, max audio output
With automatic gain control module
Powered by tiny #337/#416 button battery
5-6 hours battery life support
Earpiece size: 13x7.5x3mm / 0,5g
more information...


Model number SBL01-ST
Color skin or black
Build-in microphone YES
Bluetooth  version 1.2 / 2.0
Bluetooth Password 0000
Transmit range to earpiece < 30cm / to cellphone <10 meter
Manufacturer Spystudy covert communication
Frequency Range 2400-2480 MHz
Battery Life Talking time 3.0 hours / Standby 120hours
Battery Type 320mah lithium rechargeable battery
Dimension / Weight Bluetooth 26x58x18,5mm / Neckloop D3 x L830mm / 23 gram
Package Size / Weight Bag 104x157x36 mm - 175gram
Warranty 1 Year

SBL01ST - 3.5 watt amplified bluetooth transmitter

2012 updated design. Build in F class low consumption audio amplifier. Defined power of amplifier is 3.5 watt. Supports all kinds of wireless earpieces provides very loud audio sounds. 2 colors are available, skin and black.

Package includes:

1x SBL01-ST Amplified Bluetooth Neckloop (black or skin color)
1 x USB recharger cable
1 x USB AC charger

Power Adapter Recharge cable

Quick Start

1. Pair with mobile phone

A. Put Bluetooth neckloop in pairing mode

1) With the bluetooth neckloop power off, press and hold bluetooth switch for 6-10 seconds until indicator turn on and flash between blue and red
2) If bluetooth is switched on or indicator flashing, press and hold bluetooth switch for 5 seconds to turn off bluetooth, then repeat above step 1).

B. Put mobile phone in pairing mode

1) Go to mobile phone panel, turn on bluetooth function and search for new bluetooth device.
2) Select "T-Loop" then press "OK" or "YES".
3) Enter Password "0000" and press "OK".
  *  Once paired indicator, indicator change from flashing to blue. Some mobile phone need "connect" manually after paired.

Note: 1) Bluetooth indicator is nearby "SOS button".
           2) If can not switch on Bluetooth, please recharge for 3 hours and try again (refer to "Recharge and Battery").

2. Wear the neckloop

Hang the neckloop around the neck as shown in image to the right.

Can also put neckloop in coat pocket or put on legs when you are site down to drive sensitive earpieces including SE01/SE02S/SE02B/SE03B/SE03S/SE04

3. Test and use neckloop

Once connected to mobile phone you should be able to hear any audio within your earpiece (Please check how to use earpiece in manual of earpiece). The volume can be adjusted via thevolume control on the neckloop.

The bluetooth neckloop has a number of buttons all providing different functions. See below for detailed descriptions:

1. 38db microphone ensures you partner can hear you clearly even you are whisper to the microphone.

2. Exclusive design - Mute Button
The creative function for avoid earpiece detection.

Simply push mute button it will cut off audio output and spy earpiece detection equipment will be unable to pick up any signals from neckloop.

Works only in phone conversation status.
No cute off phone conversation.

3. Change volume to get clear sounds.
4. Exclusive design - SOS Button contact your partner without saying a word.

Simply push SOS button to transmit a beep. Ideal for transmitting morse code.
The beep noise is also audible in your earpiece.

5. Bluetooth switch multiple function switch to turn on/off power, reject / answer / make a phone call etc.                                                                                                                                                                                

4. Power, Battery and recharge

To save battery power, please turn off bluetooth power if not using for a long time.

Turn off - Press and hold bluetooth switch until indicator flash then switches off
Turn on - Press and hold bluetooth switch until indicator turn on Blue color. If already paired with mobile phone and 
                 Bluetooth functionin mobile phone is turn on, it will connect to mobile phone automatically.
                * Some mobile phone models do not support this function

The neckloop has build-in 320mah lithium rechargeable battery. The full performance of a new battery is achieved only after two or three complete charge and discharge cycles. The battery can be charge or discharge hundred of times, but it will eventually wear out.

When recharge battery use only original default USB recharge cable and default wall charge. Do not leave a full charged device o recharge power source. Overchargingmay shorten battery life. If left unused, a full charged battery will loss its charge over time.

We supply US/EU/UK standart plugs for the wall charger. Please choose correct plug while placing the order.

Make a voice dial call Press bluetooth switch and speak
End a call Tap Bluetooth switch
Receive a call Tap Bluetooth switch
Reject a call Press and hold switch until BEEP
Redial last call Press and hold switch until BEEP
Answer a secondincoming call Press and hold switch (1st call on hold)
Toggle between two active calls Press and hold switch
Join a 3-way call (depends on phone) Press and hold both volume switches
Put an active call on hold Press and hold switch until BEEP
Transfer a call from phone to BT To Bluetooth switch
Mute or unmute call Press Mute button
Send SOS alarm sound Press SOS button
Solid red
(Plugged into Adaptor)
Battery Recharging
No indicator
with adaptor plugged in
Charging completed
No indicator
without adaptor plugged in
Power use off
Flash blue and red In pairing mode
10 rapid flashes in blue Pairing Successful
Slow pulse in blue Connected


Q. Why is not the neckloop working with my phone?
A. Please make sure the bluetooth is switched on in your mobile phone and that the neckloop is in pairing mode. Also mobile phone need tobe withhin 10 meters from Bluetooth neckloop in open space. Try powering on/off the phone and neckloop and try again

Q. Why do the answer SOS and mute buttons are no function?
A. Both of SOS and mute functions only work whilst phone conversation is in progress. If you are playing music or mobile phone not in phone conversation, there 2 functions are not applicable.

Q. How to recharge battery?
A. Please red  "Power, Battery and Recharge" step #4 for detailed instructions. When you have successfully connected the neckloop to a power source the indicator will change to red.

Q. Why do i heard interference in invisible earpiece?
A. If earpiece has no quality problem, the volume is likely too loud. Reduce the volume on the volume controler.

Warranty and return policy

Default warranty is 24 month since ship date.
We do not accept return if product has not quality problem.

If product is withhin warranty and get broken, you can return back and get free repair. Return shipping cost is on buyer's behalf. We will pay the shipping cost for send repaired product.
If product is passed warranty, you need to pay return shipping cost, repair fee and shipping cost for send repaired product.

Warranty will be invalid in below conditions:
1) Passed 24 months since ship date.
2) Open case or and change circuits without our formal authorization.
3) Other kinds of problems caused by wrong operations.

The end......

This product is compatible with (for example):

Wireless Profi Button video live transmission camera SHG0225

Wireless Profi Button video live...

440,00 EUR
SBL05 GSM Spy Earpiece Box

SBL05 GSM Spy Earpiece Box

110,00 EUR
This product is similar to:

SBL03 bluetooth pen covert communication system

SBL03 bluetooth pen covert...

170,00 EUR
SBL05 GSM Spy Earpiece Box

SBL05 GSM Spy Earpiece Box

110,00 EUR
Customers who bought this product bought also the following products:

SHK-01 hands-free covert communication system

SHK-01 hands-free covert...

75,00 EUR
Hidden wireless video live transmission camera

Hidden wireless video live...

239,00 EUR
Walkie-Talkie wireless micro earpiece KFU001

Walkie-Talkie wireless micro earpiece...

155,00 EUR
SBL06 bluetooth box transmitter - 50 cm transmit power to earpiece

SBL06 bluetooth box transmitter - 50...

155,00 EUR