As German military technology is adopted, the product has the excellent performance voice-activated function small size , clear voice , long standby time , easy is used for long-range voice monitor, base station located tracking , house surveillance, prevention of burglary of car and tracking , ward ship of children, etc.
Open the back cover , it would turn on automatically as the SIM card is inserted in the slot ( the display is above ) , cover it back , then you can start to use it and dial it .
Don’t place the device in which the area has weak GSM signal or no GSM signal , for it would affect its performance.
Switch to “ OFF “ position , text message GDM + Your telephone number on your hand ( such as GDM 139888888888 , capital letters
Voice Activated Function
Switch to “ ON “ position . If you don’t need sound-activated function , just turn back to “ OFF” . Under this mode, it can just only receive a call , no matter whether there is sound around or not , it could not DIAL back automatically,
3 to 5 days in voice – activated mode. 5-15 days , in non-voice-activated mode . More detail and detailed performance depend on the frequency condition.
Work with bands (900MHz, 1800MHz,1900MHz). Please check if it can work with your local system format before purchasing!