... ON (Built by demand)Position 1~-5meter, typicalVelocity: 0.05 meter, typicalDynamic conditionAltitude8,000 meters (60,000 feet) maxVelocity515 metrs/second ... /second ,maxacceleration4 G maxMemoryWaypoints260,000.00Flash Memory4 MB SPIFeatureBike Speed displayMaximum speed, average speed, distance , elevation.ODOTrip time , trip distanceTimer3 set of timer ...