listening devices
Two-Way GSM SIM Surveillance Audio Monitor auto call bug
auto call back
singal strength:5 stars
listening devices
This product is using the German military technology, with advanced voice-activated fuction that automatically call back to the phone when there's sound detected around effective coverage.it features small size,clear voice,long standby time,simple operation,stable performance,easy installation,plus a flashlight function,can be used for remote monitoring,the base station location tracking,home surveillance,automotive anti-theft tracking,child custody.
It doesn't need external software or configuration, just insert a valid SIM card into the SIM card slot, placing it at a inconspicuous location, you could listen to the sound of it's surrounding wherever and when you want to by making a phone call or auto-dial the appointed cellphone back when there is sound around the device. it is the ideal SIM surveillance equipment you can't miss.
Product Features:
* Dimensions : 50mm x 40mm x 15mm
* SIM Card slots - work with all GSM sim card
* Embed condense microphone.
* Microphone range: about 20 Meters (diameter)
* Receive sensitivity: -\+ 10K
* Working temp: -40~50 degree C
* Responding frequency: 1.2K~800Khz
* Stand-by time: 3-5 days (using voice control function);6-15 days ( don't use voice control function);30-40 hours (flashlight available)
Work with bands (850MHz, 900MHz, 1800MHz,1900MHz). Please check if it can work with your local system format before purchasing!
Not suitable for either CDMA or 3G network!
Instructions:
Flashlight:
Regardless of the boot or shut down in the state, touch the "X" labels.
Boot:
Open the back cover,insert the SIM card holder automatically boot, boot-up indicator light 5-8 seconds until the indicator light means the rear cover can be stamped out after the dial-up use.(Note:metallic surface face down and gap direct interior,according to the pictures indication)
Install:
Please note that GSM network singal strength ,do no install in the absence of singal or weak signal areas,so as not to affect the use.
Number of settings:
Switch out to the A position before you setting number then send SMS "GDM"+"mobile number that want to receive" to the inserted card number (such as GDM13988889999) (Note:GDM necessary to complete capital letters)
Voice-activated functions:
Hold the button to"B" and it's in sound activated mode,will auto-dial the cellphone back when there is sound.
Hold the button to"A' and it's NOT in sound-activated mode,dial the inserted number when you want to check it's surrounding,the device will not automatically back out.can only answer call.
Please do not use it to engage any illegal activity.
Two-Way GSM SIM Surveillance Audio Monitor auto call bug
auto call back
singal strength:5 stars
listening devices
This product is using the German military technology, with advanced voice-activated fuction that automatically call back to the phone when there's sound detected around effective coverage.it features small size,clear voice,long standby time,simple operation,stable performance,easy installation,plus a flashlight function,can be used for remote monitoring,the base station location tracking,home surveillance,automotive anti-theft tracking,child custody.
It doesn't need external software or configuration, just insert a valid SIM card into the SIM card slot, placing it at a inconspicuous location, you could listen to the sound of it's surrounding wherever and when you want to by making a phone call or auto-dial the appointed cellphone back when there is sound around the device. it is the ideal SIM surveillance equipment you can't miss.
Product Features:
* Dimensions : 50mm x 40mm x 15mm
* SIM Card slots - work with all GSM sim card
* Embed condense microphone.
* Microphone range: about 20 Meters (diameter)
* Receive sensitivity: -\+ 10K
* Working temp: -40~50 degree C
* Responding frequency: 1.2K~800Khz
* Stand-by time: 3-5 days (using voice control function);6-15 days ( don't use voice control function);30-40 hours (flashlight available)
Work with bands (850MHz, 900MHz, 1800MHz,1900MHz). Please check if it can work with your local system format before purchasing!
Not suitable for either CDMA or 3G network!
Instructions:
Flashlight:
Regardless of the boot or shut down in the state, touch the "X" labels.
Boot:
Open the back cover,insert the SIM card holder automatically boot, boot-up indicator light 5-8 seconds until the indicator light means the rear cover can be stamped out after the dial-up use.(Note:metallic surface face down and gap direct interior,according to the pictures indication)
Install:
Please note that GSM network singal strength ,do no install in the absence of singal or weak signal areas,so as not to affect the use.
Number of settings:
Switch out to the A position before you setting number then send SMS "GDM"+"mobile number that want to receive" to the inserted card number (such as GDM13988889999) (Note:GDM necessary to complete capital letters)
Voice-activated functions:
Hold the button to"B" and it's in sound activated mode,will auto-dial the cellphone back when there is sound.
Hold the button to"A' and it's NOT in sound-activated mode,dial the inserted number when you want to check it's surrounding,the device will not automatically back out.can only answer call.
Please do not use it to engage any illegal activity.