Highlights:�� Portable， palm-sized design; super convenient to carry�� GPRS/GSM dual network real-time locating， high accuracy， no dead zone， nearly covers every corner all over the world�� Multi-language supports: Chinese， English， Russian， Spanish， Portuguese， German， French， Arabic�� Supports single-point and continuous locating�� Supports external TF card (Max 32GB， not included in the box)�� Overspeed alarm notification， improves driving safety�� SOS button for help in case of an emergencyHow to use it:1. Open the back cover， remove the battery; Insert an SD card and a SIM card， make sure the SIM card doesn��t open CF (call forwarding) & CID (caller identification) service.2. Re-install the battery， close the back cover; Bring the GPS tracker outside and long press ON/OFF button till the indicator lights up.3. Initialize the GPS tracker to default setting on first use:- Use your cell phone to send message ��begin + password�� to the SIM card in the GPS tracker， default pass word is ��123456�� (e.g. Send ��begin123456��， the GPS tracker will reply ��begin ok��).- Revise Password: Send ��password + old password + space + new password�� to the GPS tracker. e.g. Send ��password123456 666666��， the GPS tracker will reply ��password ok��. (Notes: All passwords must be 6 Arabic numbers， otherwise the device can��t recognize them.) 4. Normally， the GPS tracker will search & connect to GSM/GPS signals in 10 to 40 seconds and work properly and the indicator will keep blinking every 5 seconds.5. You can revise any setting listed on the User Manual after the GPS tracker successfully receives GPS signals:- Overspeed Alarm Setting: Send message ��speed + password + space + speed limit�� to the GPS tracker. (e.g. Send ��speed123456 80��， when your driving speed is over 80km/h， the GPS tracker will send an alarm message to your cell phone every 3 minutes); Send ��nospeed + password�� to cancel overspeed alarm setting (e.g. Send ��nospeed123456��).- Authorized Cell Phone Setting (Max supports 5 phone numbers): After continuously call the GPS tracker successfully for 10 times， the phone number will be identified as ��Authorized Cell Phone��; You can also set manually: Send message ��admin + password + space + phone number��， the GPS tracker will reply ��admin ok�� (e.g. Send ��admin123456 12345678901��); the other 4 phone numbers can be set by the first authorized cell phone. To cancel authorized cell phone setting， send ��noadmin + password + space + phone number�� (e.g. Send ��noadmin123456 12345678901��). - SOS Function: Long press ��SOS�� button for 3 seconds， the GPS tracker will send message ��Help Me + ?longitude + latitude�� to all the authorized cell phones.- For more other detailed settings， please kindly refer to the User Manual or E-mail us for help Specifications:Item Type: GPS TrackersNetwork: GSM/GPRSBand: GSM 850/900/1800/1900MHz; GPRS Class 12， TCP/IPGPS Locating Time: 45s (cold start); 35s (warm start); 1s (hot start)Battery: 3.7V 1000mAh Rechargeable Li-ion batteryStandby: 10 ~ 15 daysRunning Time: 3 ~ 5 daysAccuracy: 30m (2D RM)Working Temperature: -20 ~ 55��Working Humidity: 5% ~ 95%Dimensions: 6.5*4.5*1.7cm / 2.55*1.77*0.67inWeight: 99gWhat��s in the box:1 * GSM 850/900/1800/1900MHz GPRS TCP/IP Palm-sized Real-time Car Vehicle GPS Tracker w/ SOS + Overspeed Alarm + TF Card Slot 1 * USB Cable1 * 3.7V 1000mAh Rechargeable Li-ion Battery1 * User Manual