Features:1) Input voltage: +4.95 - +5.5V DC2) Backup battery: 3V rechargeable lithium cell battery3) Tracks up to 12 satellites4) Update rate: 1sec5) Acquisition time (average): a) Hot start: 8sec b) Warm start: 38sec c) Cold start: 48sec6) Position accuracy: position: 7) No SA Velocity: 0.1m/sec8) No SA Time: 1sec synchronized GPS time9) Dynamic conditions: altitude: 18,000m10) Max. velocity: 515m/sec (1,000knots)11) Max. acceleration: 4G producing area:China payment:L/C