<p>Working mode introduction: Instant mode: default mode, upload data for when in motion, and not upload data when in dormancy</p> <p>Power saving mode: upload data for 10 minutes when in motion, and not upload data when in dormancy</p> <p>Super power saving mode: upload data when in motion or in dormancy, upload by name on APP</p> <p>Timed mode: can set 1-24h time period, scheduled upload</p> <p>Vehicle start status reminder</p> <p>Start reminder: send start reminder when vehicle starts</p> <p>Stop reminder: send stop reminder when vehicle turns off</p> <p>GSM\/GPRS module: MTK2503D</p> <p>GPS sensitivity: -161dBm</p> <p>GPS accuracy: within 5 meters</p> <p>First start time:</p> <p>Cold start 45-120 seconds</p> <p>Warm start 35 seconds</p> <p>Hot start 1 second</p> <p>Vehicle charging voltage:</p> <p>12-24V input</p> <p>5V output</p> <p>Handheld charging voltage:</p> <p>110-220V input</p> <p>5V output</p> <p>Battery: rechargeable 3.7V</p> <p>Storage temperature: -40\u00B0C to +60\u00B0C</p> <p>Working temperature: -20\u00B0C to +45\u00B0C</p> <p>Humidity: 5%--95% non-condensing</p> <p>Tips: The product may be updated constantly, Due to Different Batches, The Actual Product May Have Slight Differences or Color Differences, Which Does Not Affect Use</p> <p>Colour:Black</p> <p>Material:plastic</p> <p>Package Contents:</p> <p>1 x 4G GPS Tracker</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>