... with two AA batteriesChoice between 2xAA, Lithium, USB, vehicle power adapter, AC adapter User data compatibilityExport and import ... Li(25hours)WaterproofIPX-7GPS ReceiverSIRF III 20 channels - High Sensitive GPS moduleAcquisition TimeCold Start: < 35s, Hot Start: <2s, Warm ... Start: <2sGPS Accuracy3-7m (GPS only), 1-3m (SBAS)SBASWAAS, EGNOS, MSASUpdate Rate1 second, ...