Features:1) Waypoints: 1,000 with name and symbol2) Routes: 30 reversible routes with up to 50 waypoints each3) Tracks:10 tracks with name and symbol4) Performance receiver: twelve parallel channel receiver continuously tracks 5) Frequency: L1, 1575.42MHz, C/A code 6) Sensitivity: -140dB7) Acquisition times: a) Hot: 10sec b) Warm: 40sec c) Cold: 60sec8) Re-acquisition: 9) Update rate: 1sec10) Accuracy: position: 25m11) 2DRMS velocity:0.1 knot RMS steady state12) Dynamics: 2g/s13) Max. height: 18,000m14) Max. velocity: 100m/s15) Antenna: built-in porcelain antenna16) Physical size: 120 x 54 x 30mm17) Weight: 170g with 2pcs AA batteries18) Display: 105 x 160 pixel, high-contrast LCD, electro-luminescent backlighting19) Memory: internal lithium battery backup lasts up to 10 years20) Power source: 2pcs AA batteries, 1.5V each21) Battery life: 16hrs producing area:China payment:L/C