This tracking device sets all functions of , tracking, , emerhency and management. This product has two powerful built in, no need to worry about the problem of placement, as long as there is metal place can be directly put . 

Features:
This tracking device sets all functions of , tracking, , emerhency and management.
This product has two powerful built in, no need to worry about the problem of placement, as long as there is metal place can be directly put . 
When the of the product is shut down, the will be connected to automatically and continue . The SIM be inserted when .
It can be put in the car, in a child's bag, in an old man's pocket, etc.
The error distance of the product is very small.
Positioning/remote listening/voice-activated callback.

Specifications:
Item type: Tracking Device
Network type: GSM/GPRS 
Frequency of communication: 850/900/1800/1900Mhz
input: Input AC110- 50/60Hz
Working voltage: 3.4-4.2V  
output: Output DC5.0V 500mA
Storage : -40℃ to +85℃ 
Operating : -20℃ to +55℃
Expansion cards: TF
Continuous calls: 150-180min
Humidity : 5%-95%non-condensing  
GPRS：Upload60,TCP/IP
Package weight: 34g / 1.19ounce
Package size: 150 * 100 * 50mm / 5.9 * 3.93 * 1.96inch

Package list:
1 * Device
1 * USB cable
1 * User manual