This amount of accuracy is great for emergency situations, trusted waypoint setting, and geocaching. Built-in altimeters and 3-axis compasses in handheld GPS gadgets are also a lot more precise now than previously before.– Trong m?t s? tr??ng h?p b? k? x?u ?e d?a, thi?t b? cho phép th?c hi?n cu?c g?i ??n s? ?i?n tho?i c?a Ph? Huynh.For those who… Read More