If you are in Turkey or Pakistan, send an SMS command to change your local vaild IMEI number. For example: If you want to change the IMEI to: 123456789078532 send an SMS command: IMEI # 123456789078532 # within 5 days of receiving your product, change your IMEI number. If you are in Chile or Colombia, you should register the IMEI in your country as much as possible after receiving the product, otherwise you cannot use it in your country during installation. Waterproof GPS tracking device Mini size easy to hide ACC detection (ACC alarm) Main power off alarm (battery only) Geographical fence alarm and overspeed alarm Vehicle / motorcycle / scooter Four frequency band 850/900/1800 in Mussel and GSM