LED function：Bluetooth connection, Navigation Status, and Battery/charger status Weight: ：64.7g Device Size：72.2 (L) X 46.5 (W) X 20 (H) mm Accessories Power adaptor, Car Charger, Rechargeable Battery GPS Chip：MTK GPS Module GPS Protocol：NMEA-0183 (V3.01) - GGA, GSA,GSV, RMC(default),GLL, ZDA, VTG (optional), Band rate 115200 bps Data bit : 8, stop bit : 1(Default) Frequency：L1, 1575.42MHz C/A Code：1.023MHz chip rate Channels：32 CH all in view tracking Antenna (Intemal)：Built-in patch antenna with LNA Sensitivity：Tracking -158 dBm Certification：CE/FCC/BQB/RoHS Acquisition Rate Cold Start：39 sec, average Warm Start：36 sec, average Hot Start：1 sec, average Reacquisition：< 1 sec Power Battery：Built-in rechargeable Li-ion battery Consumption Acquisition: 55.1mA (only baseband +RF IC) Tracking: 30.3mA Typical (only baseband +RF IC) Operation Time：32hrs, after fully charged, in continuous Charging time：3hrs. (Typical) Environmental Operating Temperature：-10°C ~ +60°C Storage Temperature：-20°C ~ +60°C Charging：0°C ~ +45°C Accuracy (none DGPS) Position：Without aid: 3.0m 2D-RMS<3m CEP (50%) without SA(horizontal)DGPS (WAAS, EGNOS, MSAS, RTCM): 2.5m Velocity：Without aid: 0.1m/s, DGPS (WAAS, EGNOS, MSAS): 0.05m/s Time：50 ns RMS Dynamic Conditions Altitude：< 18,000 M Velocity：< 515 m/sec Acceleration：< 4G Update：1Hz Interface Bluetooth：V1.2 compliant (SPP profile) Class 2 (15 meters in open space) Frequency: 2.4~2.4835 GHz Power On/Off：Slide switch Power Charge：Mini USB LED function：Bluetooth connection, Navigation Status, and Battery/charger status Weight: ：64.7g Device Size：72.2 (L) X 46.5 (W) X 20 (H) mm Accessories Power adaptor, Car Charger, Rechargeable Battery