Detailed Product Description

Detailed Description

This product adopted the German military technology. It has the voice control funtion which can Dial-Back automatically. For it has the feature of compact size, clear voice , long standby time, simplely 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 900/1800Mhz 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~800Khz
* Stand-by time: 3-5 days (using voice control function)
                         6-15 days ( dont 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 cellphone to the inserted card; hold the button to"B" and it's in sound-activated mode, will 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