Micro Voice-Activated Auto Callback GSM Audio Bug

Cheapest & Smallest GSM audio bug, 850/900/1800/1900MHz, Voice trigger, auto call back

This device allows you to anyone in any place.
You only need to buy a new SIM card, and insert it into this device. When you call this number, the device will automatically answer ---- working like a phone with auto-answer without speaker. So you can actually hear anyone's talking when you call that SIM card's phone. It can also auto dial your telephone when it hears sound around it. It is the ideal SIM surveillance equipment you can't miss.
Features a unique super- slim design, place it at home or even in the office. You could listen to the sound of its surrounding wherever you want, it is the latest SIM surveillance equipment available.

Product Features:
Work frequency (900MHz, 1800MHz, 1900MHz)
Ultra tiny dimension: 4 X 3 X 1 (cm)
Weight: Only 24G
Excellent stand by and working time -- comparing to other similar products.
Prominent sound quality makes more reliable.

Specifications:
Power Supply: 24 hours Non-stop
Card Compatible: GSM / SIM
Microphone Range (Meter): 5~7(Radius)
Receive Sensitivity: -+10K
Working Temp: -40~50'C
Responding Frequency: 1.2K~ 800 kHz
Stand-by Time: Support voice control with 3-5 days, 10-15 days without voice control
Working Time: 5 hours
Approved: CE / FCC
All GSM SIM card compatible
Work frequency (900MHz, 1800MHz, 1900 MHz). Please check if it can work with your local system format before purchasing!
Not suitable for either CDMA or 3G network!

Instructions:
Power on: Open the back cover. SIM card into the deck will automatically boot. Boot light is 3 seconds. After the lights go off you can dial the SIM card number.
Installation: Please confirm the GSM network signal strength. So as not to affect the results cause cannot be used.

Number of settings: Call the SIM card number with mobile phone or telephone, hang up then setting success

Voice feature: Send "1111" message to the SIM card number then voice controlling is open; Send "0000" message to the SIM card number then voice controlling is closed.
Please do not use it to engage any illegal activity.

Package:
1 X Mini GSM VOICE ACTIVATED Device---(without retail packaging)
1 X USB cable
1 X Charger(110V-220V)
Note: We will repackage this item to Reduce Shipping Weight and also Paper, Bag Waste. We guaranty the item will be treated well, and also protected well.


NOTE: THIS GSM audio bug is manufactured by NORTHVISION.