This product adopted the German military technology. It has the voice control function which can Dial-Back automatically.
For it has the feature of compact size, clear voice, long standby time, supplely operation, stable performance, easily
installation. External control and also plus a flashlight function, it can be used for remote monitoring, tracking , home
surveillance, automotive anti-theft tracking.etc.
It works with Tri-Band system at 900/1800 MHz only (Not for 3G or CDMA phone network)
Features:
Frequency: 900, 1800 (note: check if it can be used in your country)
Embed condense microphone.
All GSM SIM card compatible
Microphone range: about 20 Meters (diameter)
Receive sensitivity: -\+ 10K
Working temp: -40~50 degree C
Responding frequency: 1.2K~800 KHz
Stand-by time: 3-5 days (using voice control function)
6-15 days (don’t use voice control function)
30-40 hours (flashlight available)
Dimension: 2.2 x 1.4 x 0.52 inch
Operation:
Put SIM card inside; hold the button to” A" and send sms "GDM" by cell phone to the inserted card; hold the button to" B"
and it's in sound-activated mode, will dial the cell phone 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 its surrounding.
