Our overseas customer is looking for the below GPS/GPRS product. Pls contact us ASAP if you can supply. (Factories Only!) GPS personal locator, GPS/GPRS real time tracking, Phone Dialing. --Cigarette box size, Easy to carry, --Built-in Lithium battery 3.6V 1300mA/H, . --GSM/SMS communication. --Voice monitoring ( to monitor the voice situation around the unit without the user's notice) --Omni-directional high sensitivity GPS antenna which can receive GPS signal from all direction. --New technology and latest SiRF Star III chipset! Excellent for fixing the position even at a weak signal status. --Remote command control via mobile phones and/or through online software. --Receive phone calls to have two way communications. --It can filter incoming calls for up to 10 phone numbers. Only these 10 numbers can call in to the GT2000's and check its position. --3 quick dialing buttons for preset phone numbers. --Works worldwide! Support 4-frequency GSM 850/900/1800/1900 MHz. --SOS button send out exact location for immediate rescue/action. --Independent SOS (emergency) button which will send GPS location information via SMS for up to 3 preset numbers (it can be 3 sets of different numbers than the 3 sets of quick dialing numbers) . --Device can be connecting to PC by using a USB cable for setup the arguments (package comes with mini USB cable when you purchase the device) . --Low battery notification before the battery dies out! --LED indication of power, GPRS and GPS status --Built-in 512K memory for Message Record, including GPS data (time, position, speed, direction...) etc.