Brand Cityeasy Model 006 Color Black Quantity 1 GPS Chip U-blox Network GSM Band 85090018001900MHz GPS Sensitivity 159 dBm GPS Accuracy 10 meter Warm Start Time 32 Cold Start Time 38 Hot Start Time 2 Antenna Built-in Pre-loaded Map No Maps Included No Screen Size 0.8 inch Screen Format TFT PC Interface Supported USB GPS System Features Compact low power consumption; Suitable for kids and old men Operation Temperature 20~70 centigrade Storage Temperature 30~80 centigrade Humidity 20%~80%RH Altitude Limit 18000m Velocity Limit 515m/s Memory N/A GB Power Supply US plug / 100~240V Battery Type 3.7V / 450mAh Battery Standby 60 Hour Other Features Mini cute design with SOS key once meet emergency case press SOS to send help information; Double location outdoor GPS to Indoor GSM location equip with high sensitive microphone can monitor the scene of sound; Set up an area in the center of GPS watch it will alarm when goes out of area; Automatically calibrated time no need to adjust time by yourself; Watch dial width: 3.6cm; dial thickness: 1.6cm; Band length: 21cm; width: 2.3cm Packing List 1 x GPS watch 1 x Car charger 1 x USB cable (100cm) 1 x CD & user manual