1. Standard package includes: 1 GPS tracker, 2 back up batteries, 1 charger, 1 English user manual.
2. Channel: 20.
1. Sensitivity: -159dBm. 2. Precision: within 5 meters. 3. Tracking time: warm operation is 1s in average, cold operation is 35s in average. 4. Recharge on car: input 12V, output 5V. 5. Recharge on flashboard: input 110-220V, output 5V. 6. Li-battery (rechargeable/replaceable): 3.7V, 800mAh lithium battery.