Type:Gps Tracker Use:Automotive Function:GPS Security Terminal Color:Black Size:78(L) X 41 (W) X 13 (H) mm Weight:38g GSM frequenc 1900MHz GPRS:Class 12, TCP IP built-in GSM module GPS:MT3336 GSM antenna:built-in quad band GPS antenna:built-in GPS high gain ceramics patch antenna Tracking sensitivity:-165dBm